74067309161 has 2 divisors, whose sum is σ = 74067309162. Its totient is φ = 74067309160.

The previous prime is 74067309149. The next prime is 74067309181. The reversal of 74067309161 is 16190376047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59533560025 + 14533749136 = 243995^2 + 120556^2 .

It is a cyclic number.

It is not a de Polignac number, because 74067309161 - 2³⁰ = 72993567337 is a prime.

It is not a weakly prime, because it can be changed into another prime (74067309181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37033654580 + 37033654581.

It is an arithmetic number, because the mean of its divisors is an integer number (37033654581).

Almost surely, 2^74067309161 is an apocalyptic number.

It is an amenable number.

74067309161 is a deficient number, since it is larger than the sum of its proper divisors (1).

74067309161 is an equidigital number, since it uses as much as digits as its factorization.

74067309161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 74067309161 in words is "seventy-four billion, sixty-seven million, three hundred nine thousand, one hundred sixty-one".