18793992480 has 96 divisors (see below), whose sum is σ = 59232648384. Its totient is φ = 5009058816.

The previous prime is 18793992479. The next prime is 18793992493. The reversal of 18793992480 is 8429939781.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990442 + ... + 1009238.

It is an arithmetic number, because the mean of its divisors is an integer number (617006754).

Almost surely, 2^18793992480 is an apocalyptic number.

18793992480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18793992480 is an abundant number, since it is smaller than the sum of its proper divisors (40438655904).

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

18793992480 is a wasteful number, since it uses less digits than its factorization.

18793992480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20898 (or 20890 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 18793992480 in words is "eighteen billion, seven hundred ninety-three million, nine hundred ninety-two thousand, four hundred eighty".