13687650816 has 80 divisors (see below), whose sum is σ = 41674041024. Its totient is φ = 3910754304.

The previous prime is 13687650803. The next prime is 13687650853. The reversal of 13687650816 is 61805678631.

13687650816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625765 + ... + 647268.

Almost surely, 2^13687650816 is an apocalyptic number.

13687650816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13687650816 is an abundant number, since it is smaller than the sum of its proper divisors (27986390208).

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

13687650816 is an equidigital number, since it uses as much as digits as its factorization.

13687650816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273061 (or 1273045 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 13687650816 in words is "thirteen billion, six hundred eighty-seven million, six hundred fifty thousand, eight hundred sixteen".