18012948480 has 672 divisors, whose sum is σ = 68748825600. Its totient is φ = 4514807808.

The previous prime is 18012948409. The next prime is 18012948493. The reversal of 18012948480 is 8484921081.

18012948480 is a `hidden beast` number, since 1 + 8 + 0 + 129 + 48 + 480 = 666.

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 55 ways as a sum of consecutive naturals, for example, 141834177 + ... + 141834303.

It is an arithmetic number, because the mean of its divisors is an integer number (102304800).

Almost surely, 2^18012948480 is an apocalyptic number.

18012948480 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 18012948480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34374412800).

18012948480 is an abundant number, since it is smaller than the sum of its proper divisors (50735877120).

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

18012948480 is an equidigital number, since it uses as much as digits as its factorization.

18012948480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 18012948480 in words is "eighteen billion, twelve million, nine hundred forty-eight thousand, four hundred eighty".