2809868290704 has 200 divisors, whose sum is σ = 8445063486552. Its totient is φ = 901259550720.

The previous prime is 2809868290703. The next prime is 2809868290727. The reversal of 2809868290704 is 4070928689082.

2809868290704 is a `hidden beast` number, since 280 + 9 + 8 + 68 + 290 + 7 + 0 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 251301690000 + 2558566600704 = 501300^2 + 1599552^2 .

It is a super-2 number, since 2×2809868290704² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2809868290703) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3516732 + ... + 4241124.

Almost surely, 2^{2809868290704} is an apocalyptic number.

2809868290704 is a gapful number since it is divisible by the number (24) 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 2809868290704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4222531743276).

2809868290704 is an abundant number, since it is smaller than the sum of its proper divisors (5635195195848).

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

2809868290704 is a wasteful number, since it uses less digits than its factorization.

2809868290704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724527 (or 724512 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 2809868290704 in words is "two trillion, eight hundred nine billion, eight hundred sixty-eight million, two hundred ninety thousand, seven hundred four".