13918608850 has 24 divisors (see below), whose sum is σ = 25891716708. Its totient is φ = 5566776000.

The previous prime is 13918608817. The next prime is 13918608853. The reversal of 13918608850 is 5880681931.

It can be written as a sum of positive squares in 6 ways, for example, as 7132309209 + 6786299641 = 84453^2 + 82379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13918608794 and 13918608803.

It is not an unprimeable number, because it can be changed into a prime (13918608853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 806512 + ... + 823588.

Almost surely, 2^13918608850 is an apocalyptic number.

13918608850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13918608850 is a deficient number, since it is larger than the sum of its proper divisors (11973107858).

13918608850 is a wasteful number, since it uses less digits than its factorization.

13918608850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33390 (or 33385 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 13918608850 in words is "thirteen billion, nine hundred eighteen million, six hundred eight thousand, eight hundred fifty".