256630423743475 has 12 divisors (see below), whose sum is σ = 318222134706544. Its totient is φ = 205304074953120.

The previous prime is 256630423743457. The next prime is 256630423743487. The reversal of 256630423743475 is 574347324036652.

It is not a de Polignac number, because 256630423743475 - 2²³ = 256630415354867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14555977 + ... + 26928373.

Almost surely, 2^{256630423743475} is an apocalyptic number.

256630423743475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256630423743475 is a deficient number, since it is larger than the sum of its proper divisors (61591710963069).

256630423743475 is a wasteful number, since it uses less digits than its factorization.

256630423743475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13202094 (or 13202089 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 61.

The spelling of 256630423743475 in words is "two hundred fifty-six trillion, six hundred thirty billion, four hundred twenty-three million, seven hundred forty-three thousand, four hundred seventy-five".