18873265290 has 64 divisors (see below), whose sum is σ = 49745404800. Its totient is φ = 4544618240.

The previous prime is 18873265283. The next prime is 18873265291. The reversal of 18873265290 is 9256237881.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18873265291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142749 + ... + 241088.

It is an arithmetic number, because the mean of its divisors is an integer number (777271950).

Almost surely, 2^18873265290 is an apocalyptic number.

18873265290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18873265290 is an abundant number, since it is smaller than the sum of its proper divisors (30872139510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18873265290 is a wasteful number, since it uses less digits than its factorization.

18873265290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384007.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 18873265290 in words is "eighteen billion, eight hundred seventy-three million, two hundred sixty-five thousand, two hundred ninety".