256734732526236 has 48 divisors (see below), whose sum is σ = 667422213230080. Its totient is φ = 85345060935600.

The previous prime is 256734732526159. The next prime is 256734732526249. The reversal of 256734732526236 is 632625237437652.

256734732526236 is a `hidden beast` number, since 2 + 5 + 6 + 7 + 3 + 4 + 73 + 2 + 526 + 2 + 36 = 666.

It is a super-2 number, since 2×256734732526236² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3238616290 + ... + 3238695561.

Almost surely, 2^{256734732526236} is an apocalyptic number.

It is an amenable number.

256734732526236 is an abundant number, since it is smaller than the sum of its proper divisors (410687480703844).

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

256734732526236 is a wasteful number, since it uses less digits than its factorization.

256734732526236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477312231 (or 6477312223 counting only the distinct ones).

The product of its digits is 457228800, while the sum is 63.

The spelling of 256734732526236 in words is "two hundred fifty-six trillion, seven hundred thirty-four billion, seven hundred thirty-two million, five hundred twenty-six thousand, two hundred thirty-six".