18032550249 has 16 divisors (see below), whose sum is σ = 27734980608. Its totient is φ = 10208011152.

The previous prime is 18032550167. The next prime is 18032550253. The reversal of 18032550249 is 94205523081.

It is not a de Polignac number, because 18032550249 - 2¹⁶ = 18032484713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18032550299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4010337 + ... + 4014830.

It is an arithmetic number, because the mean of its divisors is an integer number (1733436288).

Almost surely, 2^18032550249 is an apocalyptic number.

It is an amenable number.

18032550249 is a deficient number, since it is larger than the sum of its proper divisors (9702430359).

18032550249 is a wasteful number, since it uses less digits than its factorization.

18032550249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8025284.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 18032550249 in words is "eighteen billion, thirty-two million, five hundred fifty thousand, two hundred forty-nine".