256759700424 has 16 divisors (see below), whose sum is σ = 641899251120. Its totient is φ = 85586566800.

The previous prime is 256759700423. The next prime is 256759700429. The reversal of 256759700424 is 424007957652.

It is not an unprimeable number, because it can be changed into a prime (256759700423) 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 3 ways as a sum of consecutive naturals, for example, 5349160402 + ... + 5349160449.

It is an arithmetic number, because the mean of its divisors is an integer number (40118703195).

Almost surely, 2^256759700424 is an apocalyptic number.

256759700424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

256759700424 is an abundant number, since it is smaller than the sum of its proper divisors (385139550696).

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

256759700424 is a wasteful number, since it uses less digits than its factorization.

256759700424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698320860 (or 10698320856 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 256759700424 in words is "two hundred fifty-six billion, seven hundred fifty-nine million, seven hundred thousand, four hundred twenty-four".