320626426256412 has 12 divisors (see below), whose sum is σ = 748128327931656. Its totient is φ = 106875475418800.

The previous prime is 320626426256363. The next prime is 320626426256447. The reversal of 320626426256412 is 214652624626023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×320626426256412² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13359434427339 + ... + 13359434427362.

It is an arithmetic number, because the mean of its divisors is an integer number (62344027327638).

Almost surely, 2^{320626426256412} is an apocalyptic number.

It is an amenable number.

320626426256412 is an abundant number, since it is smaller than the sum of its proper divisors (427501901675244).

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

320626426256412 is a wasteful number, since it uses less digits than its factorization.

320626426256412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26718868854708 (or 26718868854706 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 51.

The spelling of 320626426256412 in words is "three hundred twenty trillion, six hundred twenty-six billion, four hundred twenty-six million, two hundred fifty-six thousand, four hundred twelve".