18471567915480 has 64 divisors (see below), whose sum is σ = 55422851823360. Its totient is φ = 4925027170688.

The previous prime is 18471567915473. The next prime is 18471567915529. The reversal of 18471567915480 is 8451976517481.

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, 10497012 + ... + 12129731.

It is an arithmetic number, because the mean of its divisors is an integer number (865982059740).

Almost surely, 2^{18471567915480} is an apocalyptic number.

18471567915480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18471567915480 is an abundant number, since it is smaller than the sum of its proper divisors (36951283907880).

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

18471567915480 is a wasteful number, since it uses less digits than its factorization.

18471567915480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22633560 (or 22633556 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 66.

The spelling of 18471567915480 in words is "eighteen trillion, four hundred seventy-one billion, five hundred sixty-seven million, nine hundred fifteen thousand, four hundred eighty".