18403476480 has 704 divisors, whose sum is σ = 71310274560. Its totient is φ = 4482662400.

The previous prime is 18403476479. The next prime is 18403476517. The reversal of 18403476480 is 8467430481.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96353185 + ... + 96353375.

Almost surely, 2^18403476480 is an apocalyptic number.

18403476480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18403476480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35655137280).

18403476480 is an abundant number, since it is smaller than the sum of its proper divisors (52906798080).

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

18403476480 is a wasteful number, since it uses less digits than its factorization.

18403476480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 18403476480 in words is "eighteen billion, four hundred three million, four hundred seventy-six thousand, four hundred eighty".