797999182864 has 135 divisors (see below), whose sum is σ = 1720140186999. Its totient is φ = 358466634240.

The previous prime is 797999182777. The next prime is 797999182913. The reversal of 797999182864 is 468281999797.

The square root of 797999182864 is 893308.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 531528483600 + 266470699264 = 729060^2 + 516208^2 .

It is a super-2 number, since 2×797999182864² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1904532447 + ... + 1904532865.

Almost surely, 2^797999182864 is an apocalyptic number.

797999182864 is the 893308-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797999182864

797999182864 is an abundant number, since it is smaller than the sum of its proper divisors (922141004135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797999182864 is an equidigital number, since it uses as much as digits as its factorization.

797999182864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 475 counting only the distinct ones).

The product of its digits is 987614208, while the sum is 79.

The spelling of 797999182864 in words is "seven hundred ninety-seven billion, nine hundred ninety-nine million, one hundred eighty-two thousand, eight hundred sixty-four".