256376673652 has 24 divisors (see below), whose sum is σ = 491010129792. Its totient is φ = 116162529600.

The previous prime is 256376673647. The next prime is 256376673659.

256376673652 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×256376673652² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256376673659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9294124 + ... + 9321667.

It is an arithmetic number, because the mean of its divisors is an integer number (20458755408).

Almost surely, 2^256376673652 is an apocalyptic number.

256376673652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256376673652 is a deficient number, since it is larger than the sum of its proper divisors (234633456140).

256376673652 is a wasteful number, since it uses less digits than its factorization.

256376673652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18616119 (or 18616117 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 58.

The spelling of 256376673652 in words is "two hundred fifty-six billion, three hundred seventy-six million, six hundred seventy-three thousand, six hundred fifty-two".