18881342592 has 64 divisors (see below), whose sum is σ = 57318369600. Its totient is φ = 5394668544.

The previous prime is 18881342581. The next prime is 18881342671. The reversal of 18881342592 is 29524318881.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509467 + ... + 3514842.

It is an arithmetic number, because the mean of its divisors is an integer number (895599525).

Almost surely, 2^18881342592 is an apocalyptic number.

18881342592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18881342592 is an abundant number, since it is smaller than the sum of its proper divisors (38437027008).

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

18881342592 is an equidigital number, since it uses as much as digits as its factorization.

18881342592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024333 (or 7024321 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 51.

The spelling of 18881342592 in words is "eighteen billion, eight hundred eighty-one million, three hundred forty-two thousand, five hundred ninety-two".