256454153152 has 56 divisors (see below), whose sum is σ = 538088230400. Its totient is φ = 120933409536.

The previous prime is 256454153149. The next prime is 256454153159. The reversal of 256454153152 is 251351454652.

It is a junction number, because it is equal to n+sod(n) for n = 256454153099 and 256454153108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256454153159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201702 + ... + 744037.

It is an arithmetic number, because the mean of its divisors is an integer number (9608718400).

Almost surely, 2^256454153152 is an apocalyptic number.

It is an amenable number.

256454153152 is an abundant number, since it is smaller than the sum of its proper divisors (281634077248).

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

256454153152 is a wasteful number, since it uses less digits than its factorization.

256454153152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945993 (or 945983 counting only the distinct ones).

The product of its digits is 720000, while the sum is 43.

The spelling of 256454153152 in words is "two hundred fifty-six billion, four hundred fifty-four million, one hundred fifty-three thousand, one hundred fifty-two".