13687732650 has 48 divisors (see below), whose sum is σ = 33962299488. Its totient is φ = 3648264000.

The previous prime is 13687732627. The next prime is 13687732673. The reversal of 13687732650 is 5623778631.

It is an interprime number because it is at equal distance from previous prime (13687732627) and next prime (13687732673).

It is a self number, because there is not a number n which added to its sum of digits gives 13687732650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298240 + ... + 341060.

It is an arithmetic number, because the mean of its divisors is an integer number (707547906).

Almost surely, 2^13687732650 is an apocalyptic number.

13687732650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13687732650 is an abundant number, since it is smaller than the sum of its proper divisors (20274566838).

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

13687732650 is a wasteful number, since it uses less digits than its factorization.

13687732650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44967 (or 44962 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 13687732650 in words is "thirteen billion, six hundred eighty-seven million, seven hundred thirty-two thousand, six hundred fifty".