74537332939 has 4 divisors (see below), whose sum is σ = 74812378720. Its totient is φ = 74262287160.

The previous prime is 74537332901. The next prime is 74537332957. The reversal of 74537332939 is 93923373547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74537332939 - 2²³ = 74528944331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74537332939.

It is not an unprimeable number, because it can be changed into a prime (74537332999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137522484 + ... + 137523025.

It is an arithmetic number, because the mean of its divisors is an integer number (18703094680).

Almost surely, 2^74537332939 is an apocalyptic number.

74537332939 is a deficient number, since it is larger than the sum of its proper divisors (275045781).

74537332939 is a wasteful number, since it uses less digits than its factorization.

74537332939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275045780.

The product of its digits is 12859560, while the sum is 55.

The spelling of 74537332939 in words is "seventy-four billion, five hundred thirty-seven million, three hundred thirty-two thousand, nine hundred thirty-nine".