256477031114623 has 16 divisors (see below), whose sum is σ = 281178605740032. Its totient is φ = 232008979176000.

The previous prime is 256477031114611. The next prime is 256477031114651. The reversal of 256477031114623 is 326411130774652.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256477031114623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256477031117623) 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, 63263743 + ... + 67195648.

It is an arithmetic number, because the mean of its divisors is an integer number (17573662858752).

Almost surely, 2^{256477031114623} is an apocalyptic number.

256477031114623 is a deficient number, since it is larger than the sum of its proper divisors (24701574625409).

256477031114623 is a wasteful number, since it uses less digits than its factorization.

256477031114623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130460286.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 256477031114623 in words is "two hundred fifty-six trillion, four hundred seventy-seven billion, thirty-one million, one hundred fourteen thousand, six hundred twenty-three".