244707377664657 has 16 divisors (see below), whose sum is σ = 328873777682432. Its totient is φ = 161839834773120.

The previous prime is 244707377664623. The next prime is 244707377664721. The reversal of 244707377664657 is 756466773707442.

It is not a de Polignac number, because 244707377664657 - 2¹¹ = 244707377662609 is a prime.

It is a super-2 number, since 2×244707377664657² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244707377664157) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23052844 + ... + 31950717.

It is an arithmetic number, because the mean of its divisors is an integer number (20554611105152).

Almost surely, 2^{244707377664657} is an apocalyptic number.

It is an amenable number.

244707377664657 is a deficient number, since it is larger than the sum of its proper divisors (84166400017775).

244707377664657 is a wasteful number, since it uses less digits than its factorization.

244707377664657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55015368.

The product of its (nonzero) digits is 6970199040, while the sum is 75.

The spelling of 244707377664657 in words is "two hundred forty-four trillion, seven hundred seven billion, three hundred seventy-seven million, six hundred sixty-four thousand, six hundred fifty-seven".