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2801678684160 = 212351712721121
BaseRepresentation
bin101000110001010001000…
…100000001000000000000
3100220211121210201120201010
4220301101010001000000
5331400314220343120
65543023505240520
7406262131613016
oct50612104010000
910824553646633
102801678684160
11990204639864
12392b98633140
13174274235c85
149985db4c8b6
154cd288627e0
hex28c51101000

2801678684160 has 416 divisors, whose sum is σ = 9566777659392. Its totient is φ = 697596641280.

The previous prime is 2801678684137. The next prime is 2801678684183. The reversal of 2801678684160 is 614868761082.

It is an interprime number because it is at equal distance from previous prime (2801678684137) and next prime (2801678684183).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2801678684160.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132638400 + ... + 132659520.

Almost surely, 22801678684160 is an apocalyptic number.

2801678684160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2801678684160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4783388829696).

2801678684160 is an abundant number, since it is smaller than the sum of its proper divisors (6765098975232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2801678684160 is a wasteful number, since it uses less digits than its factorization.

2801678684160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21297 (or 21275 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 2801678684160 in words is "two trillion, eight hundred one billion, six hundred seventy-eight million, six hundred eighty-four thousand, one hundred sixty".