74538360161 has 16 divisors (see below), whose sum is σ = 77187686400. Its totient is φ = 71904651600.

The previous prime is 74538360151. The next prime is 74538360163. The reversal of 74538360161 is 16106383547.

It is a cyclic number.

It is not a de Polignac number, because 74538360161 - 2¹⁴ = 74538343777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74538360163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26440010 + ... + 26442828.

It is an arithmetic number, because the mean of its divisors is an integer number (4824230400).

Almost surely, 2^74538360161 is an apocalyptic number.

It is an amenable number.

74538360161 is a deficient number, since it is larger than the sum of its proper divisors (2649326239).

74538360161 is a wasteful number, since it uses less digits than its factorization.

74538360161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 74538360161 in words is "seventy-four billion, five hundred thirty-eight million, three hundred sixty thousand, one hundred sixty-one".