74739827523 has 4 divisors (see below), whose sum is σ = 99653103368. Its totient is φ = 49826551680.

The previous prime is 74739827509. The next prime is 74739827563. The reversal of 74739827523 is 32572893747.

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

It is not a de Polignac number, because 74739827523 - 2⁴ = 74739827507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74739827563) 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, 12456637918 + ... + 12456637923.

It is an arithmetic number, because the mean of its divisors is an integer number (24913275842).

Almost surely, 2^74739827523 is an apocalyptic number.

74739827523 is a deficient number, since it is larger than the sum of its proper divisors (24913275845).

74739827523 is a wasteful number, since it uses less digits than its factorization.

74739827523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24913275844.

The product of its digits is 17781120, while the sum is 57.

The spelling of 74739827523 in words is "seventy-four billion, seven hundred thirty-nine million, eight hundred twenty-seven thousand, five hundred twenty-three".