797202551044 has 27 divisors (see below), whose sum is σ = 1441659664053. Its totient is φ = 385716384000.

The previous prime is 797202551011. The next prime is 797202551071. The reversal of 797202551044 is 440155202797.

The square root of 797202551044 is 892862.

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

It can be written as a sum of positive squares in only one way, i.e., 796981136644 + 221414400 = 892738^2 + 14880^2 .

It is a super-2 number, since 2×797202551044² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 797202550985 and 797202551003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 55350244 + ... + 55364644.

Almost surely, 2^797202551044 is an apocalyptic number.

797202551044 is the 892862-nd square number.

It is an amenable number.

797202551044 is a deficient number, since it is larger than the sum of its proper divisors (644457113009).

797202551044 is an frugal number, since it uses more digits than its factorization.

797202551044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28868 (or 14434 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 797202551044 in words is "seven hundred ninety-seven billion, two hundred two million, five hundred fifty-one thousand, forty-four".