13680656790 has 16 divisors (see below), whose sum is σ = 32833576368. Its totient is φ = 3648175136.

The previous prime is 13680656783. The next prime is 13680656791. The reversal of 13680656790 is 9765608631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13680656791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228010917 + ... + 228010976.

It is an arithmetic number, because the mean of its divisors is an integer number (2052098523).

Almost surely, 2^13680656790 is an apocalyptic number.

13680656790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13680656790 is an abundant number, since it is smaller than the sum of its proper divisors (19152919578).

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

13680656790 is a wasteful number, since it uses less digits than its factorization.

13680656790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456021903.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 13680656790 in words is "thirteen billion, six hundred eighty million, six hundred fifty-six thousand, seven hundred ninety".