791193278667 has 24 divisors (see below), whose sum is σ = 1159651208128. Its totient is φ = 479467145520.

The previous prime is 791193278653. The next prime is 791193278723. The reversal of 791193278667 is 766872391197.

It is not a de Polignac number, because 791193278667 - 2¹⁰ = 791193277643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 791193278598 and 791193278607.

It is not an unprimeable number, because it can be changed into a prime (791193278167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4112028 + ... + 4300134.

Almost surely, 2^791193278667 is an apocalyptic number.

791193278667 is a deficient number, since it is larger than the sum of its proper divisors (368457929461).

791193278667 is a wasteful number, since it uses less digits than its factorization.

791193278667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199719 (or 199708 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 66.

The spelling of 791193278667 in words is "seven hundred ninety-one billion, one hundred ninety-three million, two hundred seventy-eight thousand, six hundred sixty-seven".