18078603180 has 48 divisors (see below), whose sum is σ = 55221917184. Its totient is φ = 4382691520.

The previous prime is 18078603173. The next prime is 18078603211. The reversal of 18078603180 is 8130687081.

It is a super-2 number, since 2×18078603180² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13695252 + ... + 13696571.

It is an arithmetic number, because the mean of its divisors is an integer number (1150456608).

Almost surely, 2^18078603180 is an apocalyptic number.

18078603180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18078603180 is an abundant number, since it is smaller than the sum of its proper divisors (37143314004).

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

18078603180 is a wasteful number, since it uses less digits than its factorization.

18078603180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27391846 (or 27391844 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 18078603180 in words is "eighteen billion, seventy-eight million, six hundred three thousand, one hundred eighty".