766576641431 has 2 divisors, whose sum is σ = 766576641432. Its totient is φ = 766576641430.

The previous prime is 766576641409. The next prime is 766576641433. The reversal of 766576641431 is 134146675667.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 766576641431 - 2¹⁴ = 766576625047 is a prime.

It is a super-2 number, since 2×766576641431² (a number of 25 digits) contains 22 as substring.

Together with 766576641433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766576641433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383288320715 + 383288320716.

It is an arithmetic number, because the mean of its divisors is an integer number (383288320716).

Almost surely, 2^766576641431 is an apocalyptic number.

766576641431 is a deficient number, since it is larger than the sum of its proper divisors (1).

766576641431 is an equidigital number, since it uses as much as digits as its factorization.

766576641431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 56.

The spelling of 766576641431 in words is "seven hundred sixty-six billion, five hundred seventy-six million, six hundred forty-one thousand, four hundred thirty-one".