74370623161 has 2 divisors, whose sum is σ = 74370623162. Its totient is φ = 74370623160.

The previous prime is 74370623153. The next prime is 74370623177. The reversal of 74370623161 is 16132607347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66864133561 + 7506489600 = 258581^2 + 86640^2 .

It is a cyclic number.

It is not a de Polignac number, because 74370623161 - 2³ = 74370623153 is a prime.

It is not a weakly prime, because it can be changed into another prime (74370623111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37185311580 + 37185311581.

It is an arithmetic number, because the mean of its divisors is an integer number (37185311581).

Almost surely, 2^74370623161 is an apocalyptic number.

It is an amenable number.

74370623161 is a deficient number, since it is larger than the sum of its proper divisors (1).

74370623161 is an equidigital number, since it uses as much as digits as its factorization.

74370623161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 74370623161 in words is "seventy-four billion, three hundred seventy million, six hundred twenty-three thousand, one hundred sixty-one".