256582677652 has 24 divisors (see below), whose sum is σ = 513179682624. Its totient is φ = 109960934592.

The previous prime is 256582677643. The next prime is 256582677653. The reversal of 256582677652 is 256776285652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256582677653) 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, 1099488 + ... + 1312264.

It is an arithmetic number, because the mean of its divisors is an integer number (21382486776).

Almost surely, 2^256582677652 is an apocalyptic number.

It is an amenable number.

256582677652 is an abundant number, since it is smaller than the sum of its proper divisors (256597004972).

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

256582677652 is a wasteful number, since it uses less digits than its factorization.

256582677652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255855 (or 255853 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 61.

The spelling of 256582677652 in words is "two hundred fifty-six billion, five hundred eighty-two million, six hundred seventy-seven thousand, six hundred fifty-two".