13980790915 has 16 divisors (see below), whose sum is σ = 20648553408. Its totient is φ = 8849379456.

The previous prime is 13980790913. The next prime is 13980790921. The reversal of 13980790915 is 51909708931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13980790915 - 2¹ = 13980790913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13980790913) 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, 15363052 + ... + 15363961.

It is an arithmetic number, because the mean of its divisors is an integer number (1290534588).

Almost surely, 2^13980790915 is an apocalyptic number.

13980790915 is a deficient number, since it is larger than the sum of its proper divisors (6667762493).

13980790915 is a wasteful number, since it uses less digits than its factorization.

13980790915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30727038.

The product of its (nonzero) digits is 612360, while the sum is 52.

The spelling of 13980790915 in words is "thirteen billion, nine hundred eighty million, seven hundred ninety thousand, nine hundred fifteen".