256762807752 has 64 divisors (see below), whose sum is σ = 708130382400. Its totient is φ = 76932669440.

The previous prime is 256762807739. The next prime is 256762807757. The reversal of 256762807752 is 257708267652.

It is a super-2 number, since 2×256762807752² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256762807692 and 256762807701.

It is not an unprimeable number, because it can be changed into a prime (256762807757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5440473 + ... + 5487464.

It is an arithmetic number, because the mean of its divisors is an integer number (11064537225).

Almost surely, 2^256762807752 is an apocalyptic number.

256762807752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256762807752 is an abundant number, since it is smaller than the sum of its proper divisors (451367574648).

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

256762807752 is a wasteful number, since it uses less digits than its factorization.

256762807752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928046 (or 10928042 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 57.

The spelling of 256762807752 in words is "two hundred fifty-six billion, seven hundred sixty-two million, eight hundred seven thousand, seven hundred fifty-two".