18000683421480 has 48 divisors (see below), whose sum is σ = 58502221120980. Its totient is φ = 4800182245632.

The previous prime is 18000683421437. The next prime is 18000683421493. The reversal of 18000683421480 is 8412438600081.

18000683421480 is a `hidden beast` number, since 1 + 80 + 0 + 0 + 68 + 34 + 2 + 1 + 480 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17954423154756 + 46260266724 = 4237266^2 + 215082^2 .

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 11 ways as a sum of consecutive naturals, for example, 25000948837 + ... + 25000949556.

Almost surely, 2^{18000683421480} is an apocalyptic number.

18000683421480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18000683421480 is an abundant number, since it is smaller than the sum of its proper divisors (40501537699500).

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

18000683421480 is a wasteful number, since it uses less digits than its factorization.

18000683421480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50001898410 (or 50001898403 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 18000683421480 in words is "eighteen trillion, six hundred eighty-three million, four hundred twenty-one thousand, four hundred eighty".