766473561523 has 2 divisors, whose sum is σ = 766473561524. Its totient is φ = 766473561522.

The previous prime is 766473561481. The next prime is 766473561563. The reversal of 766473561523 is 325165374667.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766473561523 is a prime.

It is not a weakly prime, because it can be changed into another prime (766473561563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383236780761 + 383236780762.

It is an arithmetic number, because the mean of its divisors is an integer number (383236780762).

Almost surely, 2^766473561523 is an apocalyptic number.

766473561523 is a deficient number, since it is larger than the sum of its proper divisors (1).

766473561523 is an equidigital number, since it uses as much as digits as its factorization.

766473561523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19051200, while the sum is 55.

The spelling of 766473561523 in words is "seven hundred sixty-six billion, four hundred seventy-three million, five hundred sixty-one thousand, five hundred twenty-three".