18014012650 has 24 divisors (see below), whose sum is σ = 34661447820. Its totient is φ = 6957135360.

The previous prime is 18014012641. The next prime is 18014012671. The reversal of 18014012650 is 5621041081.

It can be written as a sum of positive squares in 6 ways, for example, as 8370969049 + 9643043601 = 91493^2 + 98199^2 .

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, 6210279 + ... + 6213178.

Almost surely, 2^18014012650 is an apocalyptic number.

18014012650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18014012650 is a deficient number, since it is larger than the sum of its proper divisors (16647435170).

18014012650 is a wasteful number, since it uses less digits than its factorization.

18014012650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12423498 (or 12423493 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The spelling of 18014012650 in words is "eighteen billion, fourteen million, twelve thousand, six hundred fifty".