7813692692 has 54 divisors (see below), whose sum is σ = 15118461918. Its totient is φ = 3530699328.

The previous prime is 7813692673. The next prime is 7813692721. The reversal of 7813692692 is 2962963187.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 105555076 + 7708137616 = 10274^2 + 87796^2 .

It is a super-2 number, since 2×7813692692² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 16731443 + ... + 16731909.

It is an arithmetic number, because the mean of its divisors is an integer number (279971517).

Almost surely, 2^7813692692 is an apocalyptic number.

It is an amenable number.

7813692692 is a deficient number, since it is larger than the sum of its proper divisors (7304769226).

7813692692 is a wasteful number, since it uses less digits than its factorization.

7813692692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 535 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 7813692692 is about 88395.0942756441. The cubic root of 7813692692 is about 1984.3522847841.

Multiplying 7813692692 by its sum of digits (53), we get a square (414125712676 = 643526²).

7813692692 divided by its sum of digits (53) gives a square (147428164 = 12142²).

The spelling of 7813692692 in words is "seven billion, eight hundred thirteen million, six hundred ninety-two thousand, six hundred ninety-two".