791722643428 has 24 divisors (see below), whose sum is σ = 1459389266720. Its totient is φ = 374781504960.

The previous prime is 791722643401. The next prime is 791722643443. The reversal of 791722643428 is 824346227197.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3285801 + ... + 3518512.

Almost surely, 2^791722643428 is an apocalyptic number.

It is an amenable number.

791722643428 is a deficient number, since it is larger than the sum of its proper divisors (667666623292).

791722643428 is a wasteful number, since it uses less digits than its factorization.

791722643428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805867 (or 6805865 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 55.

The spelling of 791722643428 in words is "seven hundred ninety-one billion, seven hundred twenty-two million, six hundred forty-three thousand, four hundred twenty-eight".