7813692690 has 16 divisors (see below), whose sum is σ = 18752862528. Its totient is φ = 2083651376.

The previous prime is 7813692673. The next prime is 7813692721. The reversal of 7813692690 is 962963187.

It is a super-2 number, since 2×7813692690² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 130228182 + ... + 130228241.

It is an arithmetic number, because the mean of its divisors is an integer number (1172053908).

Almost surely, 2^7813692690 is an apocalyptic number.

7813692690 is an abundant number, since it is smaller than the sum of its proper divisors (10939169838).

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

7813692690 is a wasteful number, since it uses less digits than its factorization.

7813692690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260456433.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 7813692690 is about 88395.0942643312. The cubic root of 7813692690 is about 1984.3522846148.

The spelling of 7813692690 in words is "seven billion, eight hundred thirteen million, six hundred ninety-two thousand, six hundred ninety".