18340232885 has 32 divisors (see below), whose sum is σ = 25067253120. Its totient is φ = 12769747200.

The previous prime is 18340232861. The next prime is 18340232899. The reversal of 18340232885 is 58823204381.

It is not a de Polignac number, because 18340232885 - 2¹² = 18340228789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225395 + ... + 295775.

It is an arithmetic number, because the mean of its divisors is an integer number (783351660).

Almost surely, 2^18340232885 is an apocalyptic number.

It is an amenable number.

18340232885 is a deficient number, since it is larger than the sum of its proper divisors (6727020235).

18340232885 is a wasteful number, since it uses less digits than its factorization.

18340232885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70629.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 18340232885 in words is "eighteen billion, three hundred forty million, two hundred thirty-two thousand, eight hundred eighty-five".