256623235742252 has 24 divisors (see below), whose sum is σ = 460041285122496. Its totient is φ = 125189448482448.

The previous prime is 256623235742233. The next prime is 256623235742311. The reversal of 256623235742252 is 252247532326652.

256623235742252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 822333278 + ... + 822645285.

It is an arithmetic number, because the mean of its divisors is an integer number (19168386880104).

Almost surely, 2^{256623235742252} is an apocalyptic number.

It is an amenable number.

256623235742252 is a deficient number, since it is larger than the sum of its proper divisors (203418049380244).

256623235742252 is a wasteful number, since it uses less digits than its factorization.

256623235742252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644979517 (or 1644979515 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 56.

The spelling of 256623235742252 in words is "two hundred fifty-six trillion, six hundred twenty-three billion, two hundred thirty-five million, seven hundred forty-two thousand, two hundred fifty-two".