18180303873 has 16 divisors (see below), whose sum is σ = 24795955200. Its totient is φ = 11845277136.

The previous prime is 18180303871. The next prime is 18180303877. The reversal of 18180303873 is 37830308181.

It is not a de Polignac number, because 18180303873 - 2¹ = 18180303871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18180303871) 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, 330573 + ... + 381626.

It is an arithmetic number, because the mean of its divisors is an integer number (1549747200).

Almost surely, 2^18180303873 is an apocalyptic number.

It is an amenable number.

18180303873 is a deficient number, since it is larger than the sum of its proper divisors (6615651327).

18180303873 is a wasteful number, since it uses less digits than its factorization.

18180303873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712396.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 18180303873 in words is "eighteen billion, one hundred eighty million, three hundred three thousand, eight hundred seventy-three".