791477567999 has 16 divisors (see below), whose sum is σ = 828802777920. Its totient is φ = 754858621440.

The previous prime is 791477567987. The next prime is 791477568023. The reversal of 791477567999 is 999765774197.

It is not a de Polignac number, because 791477567999 - 2⁸ = 791477567743 is a prime.

It is a super-2 number, since 2×791477567999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791477567929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852119 + ... + 1519559.

It is an arithmetic number, because the mean of its divisors is an integer number (51800173620).

Almost surely, 2^791477567999 is an apocalyptic number.

791477567999 is a deficient number, since it is larger than the sum of its proper divisors (37325209921).

791477567999 is a wasteful number, since it uses less digits than its factorization.

791477567999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667970.

The product of its digits is 1890355320, while the sum is 80.

The spelling of 791477567999 in words is "seven hundred ninety-one billion, four hundred seventy-seven million, five hundred sixty-seven thousand, nine hundred ninety-nine".