13118902790 has 32 divisors (see below), whose sum is σ = 27538228800. Its totient is φ = 4497908352.

The previous prime is 13118902759. The next prime is 13118902793. The reversal of 13118902790 is 9720981131.

It is a happy number.

It is a super-2 number, since 2×13118902790² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13118902793) 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, 1908947 + ... + 1915806.

It is an arithmetic number, because the mean of its divisors is an integer number (860569650).

Almost surely, 2^13118902790 is an apocalyptic number.

13118902790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13118902790 is an abundant number, since it is smaller than the sum of its proper divisors (14419326010).

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

13118902790 is an equidigital number, since it uses as much as digits as its factorization.

13118902790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824781 (or 3824767 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 41.

The spelling of 13118902790 in words is "thirteen billion, one hundred eighteen million, nine hundred two thousand, seven hundred ninety".