766475440761 has 16 divisors (see below), whose sum is σ = 1111328463744. Its totient is φ = 467927771904.

The previous prime is 766475440741. The next prime is 766475440763. The reversal of 766475440761 is 167044574667.

It is a happy number.

It is not a de Polignac number, because 766475440761 - 2⁵ = 766475440729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (766475440763) 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 in 15 ways as a sum of consecutive naturals, for example, 203091765 + ... + 203095538.

It is an arithmetic number, because the mean of its divisors is an integer number (69458028984).

Almost surely, 2^766475440761 is an apocalyptic number.

It is an amenable number.

766475440761 is a deficient number, since it is larger than the sum of its proper divisors (344853022983).

766475440761 is a wasteful number, since it uses less digits than its factorization.

766475440761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406187360.

The product of its (nonzero) digits is 23708160, while the sum is 57.

The spelling of 766475440761 in words is "seven hundred sixty-six billion, four hundred seventy-five million, four hundred forty thousand, seven hundred sixty-one".