18128144286 has 24 divisors (see below), whose sum is σ = 44888738544. Its totient is φ = 5179469760.

The previous prime is 18128144261. The next prime is 18128144351. The reversal of 18128144286 is 68244182181.

18128144286 is a `hidden beast` number, since 1 + 8 + 128 + 1 + 442 + 86 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71936955 + ... + 71937206.

It is an arithmetic number, because the mean of its divisors is an integer number (1870364106).

Almost surely, 2^18128144286 is an apocalyptic number.

18128144286 is an abundant number, since it is smaller than the sum of its proper divisors (26760594258).

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

18128144286 is a wasteful number, since it uses less digits than its factorization.

18128144286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143874176 (or 143874173 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The spelling of 18128144286 in words is "eighteen billion, one hundred twenty-eight million, one hundred forty-four thousand, two hundred eighty-six".