18513892033 has 12 divisors (see below), whose sum is σ = 22911529728. Its totient is φ = 14648353200.

The previous prime is 18513892031. The next prime is 18513892039. The reversal of 18513892033 is 33029831581.

It is not a de Polignac number, because 18513892033 - 2¹ = 18513892031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18513892031) 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, 7823793 + ... + 7826158.

It is an arithmetic number, because the mean of its divisors is an integer number (1909294144).

Almost surely, 2^18513892033 is an apocalyptic number.

18513892033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18513892033 is a deficient number, since it is larger than the sum of its proper divisors (4397637695).

18513892033 is a wasteful number, since it uses less digits than its factorization.

18513892033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649984 (or 15649971 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 18513892033 in words is "eighteen billion, five hundred thirteen million, eight hundred ninety-two thousand, thirty-three".