256618873126732 has 24 divisors (see below), whose sum is σ = 449883671445936. Its totient is φ = 128080684309248.

The previous prime is 256618873126699. The next prime is 256618873126753. The reversal of 256618873126732 is 237621378816652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468631048 + ... + 469178320.

It is an arithmetic number, because the mean of its divisors is an integer number (18745152976914).

Almost surely, 2^{256618873126732} is an apocalyptic number.

It is an amenable number.

256618873126732 is a deficient number, since it is larger than the sum of its proper divisors (193264798319204).

256618873126732 is a wasteful number, since it uses less digits than its factorization.

256618873126732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756057 (or 756055 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 67.

The spelling of 256618873126732 in words is "two hundred fifty-six trillion, six hundred eighteen billion, eight hundred seventy-three million, one hundred twenty-six thousand, seven hundred thirty-two".