76445375231 has 2 divisors, whose sum is σ = 76445375232. Its totient is φ = 76445375230.

The previous prime is 76445375173. The next prime is 76445375239. The reversal of 76445375231 is 13257354467.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76445375231 is a prime.

It is a super-2 number, since 2×76445375231² (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 (76445375239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38222687615 + 38222687616.

It is an arithmetic number, because the mean of its divisors is an integer number (38222687616).

Almost surely, 2^76445375231 is an apocalyptic number.

76445375231 is a deficient number, since it is larger than the sum of its proper divisors (1).

76445375231 is an equidigital number, since it uses as much as digits as its factorization.

76445375231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 47.

The spelling of 76445375231 in words is "seventy-six billion, four hundred forty-five million, three hundred seventy-five thousand, two hundred thirty-one".