256113922463 has 4 divisors (see below), whose sum is σ = 292701625680. Its totient is φ = 219526219248.

The previous prime is 256113922429. The next prime is 256113922469. The reversal of 256113922463 is 364229311652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-256113922463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256113922469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18293851598 + ... + 18293851611.

It is an arithmetic number, because the mean of its divisors is an integer number (73175406420).

Almost surely, 2^256113922463 is an apocalyptic number.

256113922463 is a deficient number, since it is larger than the sum of its proper divisors (36587703217).

256113922463 is an equidigital number, since it uses as much as digits as its factorization.

256113922463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36587703216.

The product of its digits is 466560, while the sum is 44.

The spelling of 256113922463 in words is "two hundred fifty-six billion, one hundred thirteen million, nine hundred twenty-two thousand, four hundred sixty-three".