256308223822 has 48 divisors (see below), whose sum is σ = 449135850240. Its totient is φ = 109379708592.

The previous prime is 256308223783. The next prime is 256308223903. The reversal of 256308223822 is 228322803652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23112363 + ... + 23123449.

It is an arithmetic number, because the mean of its divisors is an integer number (9356996880).

Almost surely, 2^256308223822 is an apocalyptic number.

256308223822 is a deficient number, since it is larger than the sum of its proper divisors (192827626418).

256308223822 is a wasteful number, since it uses less digits than its factorization.

256308223822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12085 (or 12078 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 256308223822 in words is "two hundred fifty-six billion, three hundred eight million, two hundred twenty-three thousand, eight hundred twenty-two".