18009672576 has 128 divisors (see below), whose sum is σ = 57549868800. Its totient is φ = 4874784768.

The previous prime is 18009672563. The next prime is 18009672599. The reversal of 18009672576 is 67527690081.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125245 + ... + 227388.

It is an arithmetic number, because the mean of its divisors is an integer number (449608350).

Almost surely, 2^18009672576 is an apocalyptic number.

18009672576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18009672576 is an abundant number, since it is smaller than the sum of its proper divisors (39540196224).

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

18009672576 is a wasteful number, since it uses less digits than its factorization.

18009672576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352676 (or 352664 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 18009672576 in words is "eighteen billion, nine million, six hundred seventy-two thousand, five hundred seventy-six".