18687333457104 has 60 divisors (see below), whose sum is σ = 52274774530656. Its totient is φ = 5749948753536.

The previous prime is 18687333457103. The next prime is 18687333457129. The reversal of 18687333457104 is 40175433378681.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18687333457103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1151824572 + ... + 1151840795.

Almost surely, 2^{18687333457104} is an apocalyptic number.

It is an amenable number.

18687333457104 is an abundant number, since it is smaller than the sum of its proper divisors (33587441073552).

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

18687333457104 is a wasteful number, since it uses less digits than its factorization.

18687333457104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303665404 (or 2303665385 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 18687333457104 in words is "eighteen trillion, six hundred eighty-seven billion, three hundred thirty-three million, four hundred fifty-seven thousand, one hundred four".