256477700522404 has 12 divisors (see below), whose sum is σ = 448836226871004. Its totient is φ = 128238778559264.

The previous prime is 256477700522297. The next prime is 256477700522473. The reversal of 256477700522404 is 404225007774652.

It is a happy number.

256477700522404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50378083453504 + 206099617068900 = 7097752^2 + 14356170^2 .

It is a super-3 number, since 3×256477700522404³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9429859 + ... + 24533194.

It is an arithmetic number, because the mean of its divisors is an integer number (37403018905917).

Almost surely, 2^{256477700522404} is an apocalyptic number.

It is an amenable number.

256477700522404 is a deficient number, since it is larger than the sum of its proper divisors (192358526348600).

256477700522404 is a wasteful number, since it uses less digits than its factorization.

256477700522404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35850974 (or 35850972 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 55.

The spelling of 256477700522404 in words is "two hundred fifty-six trillion, four hundred seventy-seven billion, seven hundred million, five hundred twenty-two thousand, four hundred four".