76642541431 has 2 divisors, whose sum is σ = 76642541432. Its totient is φ = 76642541430.

The previous prime is 76642541389. The next prime is 76642541441. The reversal of 76642541431 is 13414524667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76642541431 - 2²⁵ = 76608986999 is a prime.

It is a super-2 number, since 2×76642541431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76642541441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38321270715 + 38321270716.

It is an arithmetic number, because the mean of its divisors is an integer number (38321270716).

Almost surely, 2^76642541431 is an apocalyptic number.

76642541431 is a deficient number, since it is larger than the sum of its proper divisors (1).

76642541431 is an equidigital number, since it uses as much as digits as its factorization.

76642541431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 43.

The spelling of 76642541431 in words is "seventy-six billion, six hundred forty-two million, five hundred forty-one thousand, four hundred thirty-one".