2018548023894 has 40 divisors (see below), whose sum is σ = 4523537292120. Its totient is φ = 672775779744.

The previous prime is 2018548023893. The next prime is 2018548023907. The reversal of 2018548023894 is 4983208458102.

2018548023894 is a `hidden beast` number, since 2 + 0 + 1 + 8 + 548 + 0 + 2 + 3 + 8 + 94 = 666.

It is a super-2 number, since 2×2018548023894² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2018548023894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018548023893) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 815337 + ... + 2168379.

It is an arithmetic number, because the mean of its divisors is an integer number (113088432303).

Almost surely, 2^{2018548023894} is an apocalyptic number.

2018548023894 is an abundant number, since it is smaller than the sum of its proper divisors (2504989268226).

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

2018548023894 is a wasteful number, since it uses less digits than its factorization.

2018548023894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362266 (or 1362257 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 2018548023894 in words is "two trillion, eighteen billion, five hundred forty-eight million, twenty-three thousand, eight hundred ninety-four".