38438912161 has 32 divisors (see below), whose sum is σ = 42504029568. Its totient is φ = 34545968640.

The previous prime is 38438912153. The next prime is 38438912207. The reversal of 38438912161 is 16121983483.

It is a cyclic number.

It is not a de Polignac number, because 38438912161 - 2³ = 38438912153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38438912101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44852445 + ... + 44853301.

It is an arithmetic number, because the mean of its divisors is an integer number (1328250924).

Almost surely, 2^38438912161 is an apocalyptic number.

It is an amenable number.

38438912161 is a deficient number, since it is larger than the sum of its proper divisors (4065117407).

38438912161 is a wasteful number, since it uses less digits than its factorization.

38438912161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441.

The product of its digits is 248832, while the sum is 46.

The spelling of 38438912161 in words is "thirty-eight billion, four hundred thirty-eight million, nine hundred twelve thousand, one hundred sixty-one".