74039474716439 has 2 divisors, whose sum is σ = 74039474716440. Its totient is φ = 74039474716438.

The previous prime is 74039474716397. The next prime is 74039474716451. The reversal of 74039474716439 is 93461747493047.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74039474716439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74039474716639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37019737358219 + 37019737358220.

It is an arithmetic number, because the mean of its divisors is an integer number (37019737358220).

Almost surely, 2^{74039474716439} is an apocalyptic number.

74039474716439 is a deficient number, since it is larger than the sum of its proper divisors (1).

74039474716439 is an equidigital number, since it uses as much as digits as its factorization.

74039474716439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384072192, while the sum is 68.

The spelling of 74039474716439 in words is "seventy-four trillion, thirty-nine billion, four hundred seventy-four million, seven hundred sixteen thousand, four hundred thirty-nine".