76426438931 has 4 divisors (see below), whose sum is σ = 76463026200. Its totient is φ = 76389851664.

The previous prime is 76426438903. The next prime is 76426438987. The reversal of 76426438931 is 13983462467.

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 76426438931 - 2¹⁴ = 76426422547 is a prime.

It is a super-2 number, since 2×76426438931² (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 (76426438631) 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, 18290501 + ... + 18294678.

It is an arithmetic number, because the mean of its divisors is an integer number (19115756550).

Almost surely, 2^76426438931 is an apocalyptic number.

76426438931 is a deficient number, since it is larger than the sum of its proper divisors (36587269).

76426438931 is a wasteful number, since it uses less digits than its factorization.

76426438931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36587268.

The product of its digits is 5225472, while the sum is 53.

The spelling of 76426438931 in words is "seventy-six billion, four hundred twenty-six million, four hundred thirty-eight thousand, nine hundred thirty-one".