74442384731 has 32 divisors (see below), whose sum is σ = 92112787200. Its totient is φ = 59147210880.

The previous prime is 74442384713. The next prime is 74442384733. The reversal of 74442384731 is 13748324447.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74442384731 is a prime.

It is a super-2 number, since 2×74442384731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74442384733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5391785 + ... + 5405573.

It is an arithmetic number, because the mean of its divisors is an integer number (2878524600).

Almost surely, 2^74442384731 is an apocalyptic number.

74442384731 is a deficient number, since it is larger than the sum of its proper divisors (17670402469).

74442384731 is a wasteful number, since it uses less digits than its factorization.

74442384731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15819.

The product of its digits is 1806336, while the sum is 47.

The spelling of 74442384731 in words is "seventy-four billion, four hundred forty-two million, three hundred eighty-four thousand, seven hundred thirty-one".