74923039439 has 2 divisors, whose sum is σ = 74923039440. Its totient is φ = 74923039438.

The previous prime is 74923039423. The next prime is 74923039447. The reversal of 74923039439 is 93493032947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74923039439 - 2⁴ = 74923039423 is a prime.

It is a super-2 number, since 2×74923039439² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74923039039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37461519719 + 37461519720.

It is an arithmetic number, because the mean of its divisors is an integer number (37461519720).

Almost surely, 2^74923039439 is an apocalyptic number.

74923039439 is a deficient number, since it is larger than the sum of its proper divisors (1).

74923039439 is an equidigital number, since it uses as much as digits as its factorization.

74923039439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4408992, while the sum is 53.

The spelling of 74923039439 in words is "seventy-four billion, nine hundred twenty-three million, thirty-nine thousand, four hundred thirty-nine".