74917871939 has 2 divisors, whose sum is σ = 74917871940. Its totient is φ = 74917871938.

The previous prime is 74917871927. The next prime is 74917871971. The reversal of 74917871939 is 93917871947.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74917871939 - 2²⁰ = 74916823363 is a prime.

It is a super-2 number, since 2×74917871939² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74917871989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37458935969 + 37458935970.

It is an arithmetic number, because the mean of its divisors is an integer number (37458935970).

Almost surely, 2^74917871939 is an apocalyptic number.

74917871939 is a deficient number, since it is larger than the sum of its proper divisors (1).

74917871939 is an equidigital number, since it uses as much as digits as its factorization.

74917871939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24004512, while the sum is 65.

The spelling of 74917871939 in words is "seventy-four billion, nine hundred seventeen million, eight hundred seventy-one thousand, nine hundred thirty-nine".