18497064800 has 36 divisors (see below), whose sum is σ = 45155961396. Its totient is φ = 7398825600.

The previous prime is 18497064793. The next prime is 18497064869. The reversal of 18497064800 is 846079481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11559866 + ... + 11561465.

It is an arithmetic number, because the mean of its divisors is an integer number (1254332261).

Almost surely, 2^18497064800 is an apocalyptic number.

18497064800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18497064800 is an abundant number, since it is smaller than the sum of its proper divisors (26658896596).

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

18497064800 is a wasteful number, since it uses less digits than its factorization.

18497064800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23121351 (or 23121338 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 18497064800 in words is "eighteen billion, four hundred ninety-seven million, sixty-four thousand, eight hundred".