2905789120256 has 72 divisors (see below), whose sum is σ = 6498535222704. Its totient is φ = 1285115535360.

The previous prime is 2905789120231. The next prime is 2905789120279. The reversal of 2905789120256 is 6520219875092.

It is a super-2 number, since 2×2905789120256² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13840205 + ... + 14048588.

Almost surely, 2^{2905789120256} is an apocalyptic number.

It is an amenable number.

2905789120256 is an abundant number, since it is smaller than the sum of its proper divisors (3592746102448).

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

2905789120256 is a wasteful number, since it uses less digits than its factorization.

2905789120256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27888857 (or 27888843 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 2905789120256 in words is "two trillion, nine hundred five billion, seven hundred eighty-nine million, one hundred twenty thousand, two hundred fifty-six".