256477700522402 has 8 divisors (see below), whose sum is σ = 385945677144876. Its totient is φ = 127829141474112.

The previous prime is 256477700522297. The next prime is 256477700522473. The reversal of 256477700522402 is 204225007774652.

256477700522402 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 180815381391121 + 75662319131281 = 13446761^2 + 8698409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×256477700522402³ (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, 204854392763 + ... + 204854394014.

Almost surely, 2^{256477700522402} is an apocalyptic number.

256477700522402 is a deficient number, since it is larger than the sum of its proper divisors (129467976622474).

256477700522402 is a wasteful number, since it uses less digits than its factorization.

256477700522402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409708787092.

The product of its (nonzero) digits is 13171200, while the sum is 53.

The spelling of 256477700522402 in words is "two hundred fifty-six trillion, four hundred seventy-seven billion, seven hundred million, five hundred twenty-two thousand, four hundred two".