766475080671 has 4 divisors (see below), whose sum is σ = 1021966774232. Its totient is φ = 510983387112.

The previous prime is 766475080663. The next prime is 766475080687. The reversal of 766475080671 is 176080574667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176080574667 = 3 ⋅58693524889.

It is not a de Polignac number, because 766475080671 - 2³ = 766475080663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766475080571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127745846776 + ... + 127745846781.

It is an arithmetic number, because the mean of its divisors is an integer number (255491693558).

Almost surely, 2^766475080671 is an apocalyptic number.

766475080671 is a deficient number, since it is larger than the sum of its proper divisors (255491693561).

766475080671 is a wasteful number, since it uses less digits than its factorization.

766475080671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255491693560.

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 766475080671 in words is "seven hundred sixty-six billion, four hundred seventy-five million, eighty thousand, six hundred seventy-one".