10256456838 has 16 divisors (see below), whose sum is σ = 21404779776. Its totient is φ = 3270174600.

The previous prime is 10256456737. The next prime is 10256456849. The reversal of 10256456838 is 83865465201.

It is a happy number.

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, 37160938 + ... + 37161213.

It is an arithmetic number, because the mean of its divisors is an integer number (1337798736).

Almost surely, 2^10256456838 is an apocalyptic number.

10256456838 is an abundant number, since it is smaller than the sum of its proper divisors (11148322938).

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

10256456838 is a wasteful number, since it uses less digits than its factorization.

10256456838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74322179.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 10256456838 in words is "ten billion, two hundred fifty-six million, four hundred fifty-six thousand, eight hundred thirty-eight".