256724706744236 has 48 divisors (see below), whose sum is σ = 461933014932480. Its totient is φ = 124795203984000.

The previous prime is 256724706744229. The next prime is 256724706744301. The reversal of 256724706744236 is 632447607427652.

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, 11223800 + ... + 25286816.

It is an arithmetic number, because the mean of its divisors is an integer number (9623604477760).

Almost surely, 2^{256724706744236} is an apocalyptic number.

It is an amenable number.

256724706744236 is a deficient number, since it is larger than the sum of its proper divisors (205208308188244).

256724706744236 is a wasteful number, since it uses less digits than its factorization.

256724706744236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14063934 (or 14063932 counting only the distinct ones).

The product of its (nonzero) digits is 568995840, while the sum is 65.

The spelling of 256724706744236 in words is "two hundred fifty-six trillion, seven hundred twenty-four billion, seven hundred six million, seven hundred forty-four thousand, two hundred thirty-six".