74265713129 has 2 divisors, whose sum is σ = 74265713130. Its totient is φ = 74265713128.

The previous prime is 74265713083. The next prime is 74265713149. The reversal of 74265713129 is 92131756247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66485591104 + 7780122025 = 257848^2 + 88205^2 .

It is a cyclic number.

It is not a de Polignac number, because 74265713129 - 2²⁰ = 74264664553 is a prime.

It is a super-2 number, since 2×74265713129² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74265713149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37132856564 + 37132856565.

It is an arithmetic number, because the mean of its divisors is an integer number (37132856565).

Almost surely, 2^74265713129 is an apocalyptic number.

It is an amenable number.

74265713129 is a deficient number, since it is larger than the sum of its proper divisors (1).

74265713129 is an equidigital number, since it uses as much as digits as its factorization.

74265713129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The spelling of 74265713129 in words is "seventy-four billion, two hundred sixty-five million, seven hundred thirteen thousand, one hundred twenty-nine".