766275862138 has 16 divisors (see below), whose sum is σ = 1256285286144. Its totient is φ = 348968134080.

The previous prime is 766275862123. The next prime is 766275862147. The reversal of 766275862138 is 831268572667.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 363507420 + ... + 363509527.

It is an arithmetic number, because the mean of its divisors is an integer number (78517830384).

Almost surely, 2^766275862138 is an apocalyptic number.

766275862138 is a deficient number, since it is larger than the sum of its proper divisors (490009424006).

766275862138 is a wasteful number, since it uses less digits than its factorization.

766275862138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727016997.

The product of its digits is 40642560, while the sum is 61.

The spelling of 766275862138 in words is "seven hundred sixty-six billion, two hundred seventy-five million, eight hundred sixty-two thousand, one hundred thirty-eight".