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868428750000 = 24357733083
BaseRepresentation
bin11001010001100100110…
…00110001110010110000
310002000120021220102001210
430220302120301302300
5103212020230000000
61502541202000120
7116512321402620
oct14506230616260
93060507812053
10868428750000
11305331431449
12120383046040
1363b7aa162a6
143006440c880
15178ca9d2350
hexca32631cb0

868428750000 has 320 divisors, whose sum is σ = 3205004295168. Its totient is φ = 198492000000.

The previous prime is 868428749999. The next prime is 868428750019. The reversal of 868428750000 is 57824868.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26233459 + ... + 26266541.

Almost surely, 2868428750000 is an apocalyptic number.

868428750000 is a gapful number since it is divisible by the number (80) 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 868428750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602502147584).

868428750000 is an abundant number, since it is smaller than the sum of its proper divisors (2336575545168).

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

868428750000 is an frugal number, since it uses more digits than its factorization.

868428750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33136 (or 33100 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 868428750000 in words is "eight hundred sixty-eight billion, four hundred twenty-eight million, seven hundred fifty thousand".