18948734262144 has 128 divisors (see below), whose sum is σ = 56841889044000. Its totient is φ = 6212699688960.

The previous prime is 18948734262127. The next prime is 18948734262163. The reversal of 18948734262144 is 44126243784981.

18948734262144 is a `hidden beast` number, since 1 + 8 + 9 + 487 + 3 + 4 + 2 + 6 + 2 + 144 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×18948734262144² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44730589 + ... + 45152220.

Almost surely, 2^{18948734262144} is an apocalyptic number.

It is an amenable number.

18948734262144 is an abundant number, since it is smaller than the sum of its proper divisors (37893154781856).

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

18948734262144 is an equidigital number, since it uses as much as digits as its factorization.

18948734262144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89882893 (or 89882875 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 63.

The spelling of 18948734262144 in words is "eighteen trillion, nine hundred forty-eight billion, seven hundred thirty-four million, two hundred sixty-two thousand, one hundred forty-four".