2256632657928 has 96 divisors (see below), whose sum is σ = 6758657137440. Its totient is φ = 674460552960.

The previous prime is 2256632657921. The next prime is 2256632657963. The reversal of 2256632657928 is 8297562366522.

2256632657928 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 6 + 32 + 6 + 579 + 28 = 666.

It is a super-2 number, since 2×2256632657928² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2256632657921) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 19457826 + ... + 19573457.

It is an arithmetic number, because the mean of its divisors is an integer number (70402678515).

Almost surely, 2^{2256632657928} is an apocalyptic number.

It is an amenable number.

2256632657928 is an abundant number, since it is smaller than the sum of its proper divisors (4502024479512).

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

2256632657928 is a wasteful number, since it uses less digits than its factorization.

2256632657928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39031379 (or 39031372 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 63.

The spelling of 2256632657928 in words is "two trillion, two hundred fifty-six billion, six hundred thirty-two million, six hundred fifty-seven thousand, nine hundred twenty-eight".