44137657673365 has 16 divisors (see below), whose sum is σ = 53242133329008. Its totient is φ = 35125513998336.

The previous prime is 44137657673311. The next prime is 44137657673399. The reversal of 44137657673365 is 56337675673144.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10466771387121 + 33670886286244 = 3235239^2 + 5802662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44137657673365 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44137657673365.

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, 19579299 + ... + 21716911.

It is an arithmetic number, because the mean of its divisors is an integer number (3327633333063).

Almost surely, 2^{44137657673365} is an apocalyptic number.

It is an amenable number.

44137657673365 is a deficient number, since it is larger than the sum of its proper divisors (9104475655643).

44137657673365 is a wasteful number, since it uses less digits than its factorization.

44137657673365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159208.

The product of its digits is 800150400, while the sum is 67.

The spelling of 44137657673365 in words is "forty-four trillion, one hundred thirty-seven billion, six hundred fifty-seven million, six hundred seventy-three thousand, three hundred sixty-five".