18824999423040 has 84 divisors (see below), whose sum is σ = 64750154275404. Its totient is φ = 5019999845376.

The previous prime is 18824999423039. The next prime is 18824999423053. The reversal of 18824999423040 is 4032499942881.

18824999423040 is a `hidden beast` number, since 1 + 8 + 82 + 4 + 9 + 99 + 423 + 0 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7330621230144 + 11494378192896 = 2707512^2 + 3390336^2 .

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, 3268226187 + ... + 3268231946.

Almost surely, 2^{18824999423040} is an apocalyptic number.

18824999423040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18824999423040 is an abundant number, since it is smaller than the sum of its proper divisors (45925154852364).

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

18824999423040 is a wasteful number, since it uses less digits than its factorization.

18824999423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536458156 (or 6536458143 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 18824999423040 in words is "eighteen trillion, eight hundred twenty-four billion, nine hundred ninety-nine million, four hundred twenty-three thousand, forty".