256087808630 has 8 divisors (see below), whose sum is σ = 460958055552. Its totient is φ = 102435123448.

The previous prime is 256087808621. The next prime is 256087808653. The reversal of 256087808630 is 36808780652.

256087808630 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12804390422 + ... + 12804390441.

It is an arithmetic number, because the mean of its divisors is an integer number (57619756944).

Almost surely, 2^256087808630 is an apocalyptic number.

256087808630 is a deficient number, since it is larger than the sum of its proper divisors (204870246922).

256087808630 is a wasteful number, since it uses less digits than its factorization.

256087808630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25608780870.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 256087808630 in words is "two hundred fifty-six billion, eighty-seven million, eight hundred eight thousand, six hundred thirty".