18493008120 has 96 divisors (see below), whose sum is σ = 60143821920. Its totient is φ = 4928060160.

The previous prime is 18493008103. The next prime is 18493008133. The reversal of 18493008120 is 2180039481.

It is a Cunningham number, because it is equal to 135989²-1.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526962 + ... + 560958.

It is an arithmetic number, because the mean of its divisors is an integer number (626498145).

Almost surely, 2^18493008120 is an apocalyptic number.

18493008120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18493008120 is an abundant number, since it is smaller than the sum of its proper divisors (41650813800).

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

18493008120 is a wasteful number, since it uses less digits than its factorization.

18493008120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35525 (or 35518 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 18493008120 in words is "eighteen billion, four hundred ninety-three million, eight thousand, one hundred twenty".