18487297024 has 99 divisors (see below), whose sum is σ = 43061201703. Its totient is φ = 7910074368.

The previous prime is 18487297007. The next prime is 18487297057. The reversal of 18487297024 is 42079278481.

The square root of 18487297024 is 135968.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30456529 + ... + 30457135.

Almost surely, 2^18487297024 is an apocalyptic number.

18487297024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18487297024 is the 135968-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18487297024

18487297024 is an abundant number, since it is smaller than the sum of its proper divisors (24573904679).

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

18487297024 is an frugal number, since it uses more digits than its factorization.

18487297024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 18487297024 in words is "eighteen billion, four hundred eighty-seven million, two hundred ninety-seven thousand, twenty-four".