76421432831 has 8 divisors (see below), whose sum is σ = 78666066864. Its totient is φ = 74206529280.

The previous prime is 76421432807. The next prime is 76421432833. The reversal of 76421432831 is 13823412467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76421432831 - 2³⁰ = 75347691007 is a prime.

It is a super-2 number, since 2×76421432831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76421432833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7427405 + ... + 7437686.

It is an arithmetic number, because the mean of its divisors is an integer number (9833258358).

Almost surely, 2^76421432831 is an apocalyptic number.

76421432831 is a deficient number, since it is larger than the sum of its proper divisors (2244634033).

76421432831 is a wasteful number, since it uses less digits than its factorization.

76421432831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14865241.

The product of its digits is 193536, while the sum is 41.

The spelling of 76421432831 in words is "seventy-six billion, four hundred twenty-one million, four hundred thirty-two thousand, eight hundred thirty-one".