764369424963491 has 2 divisors, whose sum is σ = 764369424963492. Its totient is φ = 764369424963490.

The previous prime is 764369424963467. The next prime is 764369424963503. The reversal of 764369424963491 is 194369424963467.

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-764369424963491 is a prime.

It is not a weakly prime, because it can be changed into another prime (764369424962491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382184712481745 + 382184712481746.

It is an arithmetic number, because the mean of its divisors is an integer number (382184712481746).

Almost surely, 2^{764369424963491} is an apocalyptic number.

764369424963491 is a deficient number, since it is larger than the sum of its proper divisors (1).

764369424963491 is an equidigital number, since it uses as much as digits as its factorization.

764369424963491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5079158784, while the sum is 77.

The spelling of 764369424963491 in words is "seven hundred sixty-four trillion, three hundred sixty-nine billion, four hundred twenty-four million, nine hundred sixty-three thousand, four hundred ninety-one".