13089644850 has 24 divisors (see below), whose sum is σ = 32462319600. Its totient is φ = 3490571920.

The previous prime is 13089644849. The next prime is 13089644881. The reversal of 13089644850 is 5844698031.

It is a self number, because there is not a number n which added to its sum of digits gives 13089644850.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43632000 + ... + 43632299.

It is an arithmetic number, because the mean of its divisors is an integer number (1352596650).

Almost surely, 2^13089644850 is an apocalyptic number.

13089644850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13089644850 is an abundant number, since it is smaller than the sum of its proper divisors (19372674750).

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

13089644850 is a wasteful number, since it uses less digits than its factorization.

13089644850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87264314 (or 87264309 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 13089644850 in words is "thirteen billion, eighty-nine million, six hundred forty-four thousand, eight hundred fifty".