13865768680 has 32 divisors (see below), whose sum is σ = 31958909640. Its totient is φ = 5411031040.

The previous prime is 13865768677. The next prime is 13865768737. The reversal of 13865768680 is 8686756831.

It can be written as a sum of positive squares in 4 ways, for example, as 2982688996 + 10883079684 = 54614^2 + 104322^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4225729 + ... + 4229008.

Almost surely, 2^13865768680 is an apocalyptic number.

13865768680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13865768680 is an abundant number, since it is smaller than the sum of its proper divisors (18093140960).

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

13865768680 is a wasteful number, since it uses less digits than its factorization.

13865768680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454789 (or 8454785 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 13865768680 in words is "thirteen billion, eight hundred sixty-five million, seven hundred sixty-eight thousand, six hundred eighty".