644113114013362 has 16 divisors (see below), whose sum is σ = 1112622870883392. Its totient is φ = 273941237147760.

The previous prime is 644113114013309. The next prime is 644113114013419. The reversal of 644113114013362 is 263310411311446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175603355313 + ... + 175603358980.

It is an arithmetic number, because the mean of its divisors is an integer number (69538929430212).

Almost surely, 2^{644113114013362} is an apocalyptic number.

644113114013362 is a deficient number, since it is larger than the sum of its proper divisors (468509756870030).

644113114013362 is a wasteful number, since it uses less digits than its factorization.

644113114013362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351206714433.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 644113114013362 in words is "six hundred forty-four trillion, one hundred thirteen billion, one hundred fourteen million, thirteen thousand, three hundred sixty-two".