18900657841084 has 6 divisors (see below), whose sum is σ = 33076151221904. Its totient is φ = 9450328920540.

The previous prime is 18900657841081. The next prime is 18900657841127. The reversal of 18900657841084 is 48014875600981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18900657841081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2362582230132 + ... + 2362582230139.

Almost surely, 2^{18900657841084} is an apocalyptic number.

It is an amenable number.

18900657841084 is a deficient number, since it is larger than the sum of its proper divisors (14175493380820).

18900657841084 is a wasteful number, since it uses less digits than its factorization.

18900657841084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4725164460275 (or 4725164460273 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 18900657841084 in words is "eighteen trillion, nine hundred billion, six hundred fifty-seven million, eight hundred forty-one thousand, eighty-four".