18272480460 has 192 divisors, whose sum is σ = 57200338944. Its totient is φ = 4329446400.

The previous prime is 18272480419. The next prime is 18272480489. The reversal of 18272480460 is 6408427281.

It is a super-2 number, since 2×18272480460² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2232175 + ... + 2240345.

It is an arithmetic number, because the mean of its divisors is an integer number (297918432).

Almost surely, 2^18272480460 is an apocalyptic number.

18272480460 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 18272480460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28600169472).

18272480460 is an abundant number, since it is smaller than the sum of its proper divisors (38927858484).

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

18272480460 is a wasteful number, since it uses less digits than its factorization.

18272480460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304 (or 8302 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 18272480460 in words is "eighteen billion, two hundred seventy-two million, four hundred eighty thousand, four hundred sixty".