256477035637252 has 12 divisors (see below), whose sum is σ = 463313354699776. Its totient is φ = 124101791437320.

The previous prime is 256477035637219. The next prime is 256477035637331. The reversal of 256477035637252 is 252736530774652.

It is a super-2 number, since 2×256477035637252² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034181595188 + ... + 1034181595435.

Almost surely, 2^{256477035637252} is an apocalyptic number.

It is an amenable number.

256477035637252 is a deficient number, since it is larger than the sum of its proper divisors (206836319062524).

256477035637252 is a wasteful number, since it uses less digits than its factorization.

256477035637252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068363190658 (or 2068363190656 counting only the distinct ones).

The product of its (nonzero) digits is 444528000, while the sum is 64.

The spelling of 256477035637252 in words is "two hundred fifty-six trillion, four hundred seventy-seven billion, thirty-five million, six hundred thirty-seven thousand, two hundred fifty-two".