38438744035761 has 6 divisors (see below), whose sum is σ = 55522630273890. Its totient is φ = 25625829357168.

The previous prime is 38438744035733. The next prime is 38438744035771. The reversal of 38438744035761 is 16753044783483.

38438744035761 is a `hidden beast` number, since 3 + 8 + 4 + 3 + 87 + 440 + 3 + 57 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26391902663025 + 12046841372736 = 5137305^2 + 3470856^2 .

It is not a de Polignac number, because 38438744035761 - 2⁶ = 38438744035697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38438744035771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2135485779756 + ... + 2135485779773.

It is an arithmetic number, because the mean of its divisors is an integer number (9253771712315).

Almost surely, 2^{38438744035761} is an apocalyptic number.

It is an amenable number.

38438744035761 is a deficient number, since it is larger than the sum of its proper divisors (17083886238129).

38438744035761 is a wasteful number, since it uses less digits than its factorization.

38438744035761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270971559535 (or 4270971559532 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 63.

The spelling of 38438744035761 in words is "thirty-eight trillion, four hundred thirty-eight billion, seven hundred forty-four million, thirty-five thousand, seven hundred sixty-one".