18120049360 has 40 divisors (see below), whose sum is σ = 48147561216. Its totient is φ = 6212588160.

The previous prime is 18120049357. The next prime is 18120049393. The reversal of 18120049360 is 6394002181.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16178056 + ... + 16179175.

Almost surely, 2^18120049360 is an apocalyptic number.

18120049360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18120049360 is an abundant number, since it is smaller than the sum of its proper divisors (30027511856).

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

18120049360 is a wasteful number, since it uses less digits than its factorization.

18120049360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32357251 (or 32357245 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 18120049360 in words is "eighteen billion, one hundred twenty million, forty-nine thousand, three hundred sixty".