18875324743812 has 36 divisors (see below), whose sum is σ = 49357889419020. Its totient is φ = 6074817158592.

The previous prime is 18875324743801. The next prime is 18875324743867. The reversal of 18875324743812 is 21834742357881.

18875324743812 is a `hidden beast` number, since 1 + 8 + 8 + 7 + 5 + 3 + 247 + 4 + 381 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12934912952196 + 5940411791616 = 3596514^2 + 2437296^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18875324743812.

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, 9039905443 + ... + 9039907530.

Almost surely, 2^{18875324743812} is an apocalyptic number.

18875324743812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18875324743812 is an abundant number, since it is smaller than the sum of its proper divisors (30482564675208).

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

18875324743812 is a wasteful number, since it uses less digits than its factorization.

18875324743812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18079813012 (or 18079813007 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 63.

The spelling of 18875324743812 in words is "eighteen trillion, eight hundred seventy-five billion, three hundred twenty-four million, seven hundred forty-three thousand, eight hundred twelve".