256753235015340 has 96 divisors (see below), whose sum is σ = 822384727041024. Its totient is φ = 58631141218560.

The previous prime is 256753235015311. The next prime is 256753235015399. The reversal of 256753235015340 is 43510532357652.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287639784 + ... + 288531023.

It is an arithmetic number, because the mean of its divisors is an integer number (8566507573344).

Almost surely, 2^{256753235015340} is an apocalyptic number.

256753235015340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256753235015340 is an abundant number, since it is smaller than the sum of its proper divisors (565631492025684).

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

256753235015340 is a wasteful number, since it uses less digits than its factorization.

256753235015340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576171887 (or 576171885 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 51.

The spelling of 256753235015340 in words is "two hundred fifty-six trillion, seven hundred fifty-three billion, two hundred thirty-five million, fifteen thousand, three hundred forty".