18673334431812 has 48 divisors (see below), whose sum is σ = 48432580015680. Its totient is φ = 6221843619264.

The previous prime is 18673334431709. The next prime is 18673334431849. The reversal of 18673334431812 is 21813443337681.

18673334431812 is a `hidden beast` number, since 1 + 86 + 73 + 33 + 443 + 18 + 12 = 666.

It is a super-3 number, since 3×18673334431812³ (a number of 41 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35868018 + ... + 36384905.

It is an arithmetic number, because the mean of its divisors is an integer number (1009012083660).

Almost surely, 2^{18673334431812} is an apocalyptic number.

18673334431812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18673334431812 is an abundant number, since it is smaller than the sum of its proper divisors (29759245583868).

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

18673334431812 is a wasteful number, since it uses less digits than its factorization.

18673334431812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72255329 (or 72255321 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 18673334431812 in words is "eighteen trillion, six hundred seventy-three billion, three hundred thirty-four million, four hundred thirty-one thousand, eight hundred twelve".