256724677545132 has 24 divisors (see below), whose sum is σ = 599025967654576. Its totient is φ = 85574646793728.

The previous prime is 256724677544971. The next prime is 256724677545143. The reversal of 256724677545132 is 231545776427652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26336953 + ... + 34743120.

Almost surely, 2^{256724677545132} is an apocalyptic number.

It is an amenable number.

256724677545132 is an abundant number, since it is smaller than the sum of its proper divisors (342301290109444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256724677545132 is a wasteful number, since it uses less digits than its factorization.

256724677545132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61430337 (or 61430335 counting only the distinct ones).

The product of its digits is 592704000, while the sum is 66.

The spelling of 256724677545132 in words is "two hundred fifty-six trillion, seven hundred twenty-four billion, six hundred seventy-seven million, five hundred forty-five thousand, one hundred thirty-two".