18100146388 has 12 divisors (see below), whose sum is σ = 32272902900. Its totient is φ = 8879316992.

The previous prime is 18100146367. The next prime is 18100146433. The reversal of 18100146388 is 88364100181.

It can be written as a sum of positive squares in 2 ways, for example, as 16309333264 + 1790813124 = 127708^2 + 42318^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18100146388.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42688813 + ... + 42689236.

It is an arithmetic number, because the mean of its divisors is an integer number (2689408575).

Almost surely, 2^18100146388 is an apocalyptic number.

It is an amenable number.

18100146388 is a deficient number, since it is larger than the sum of its proper divisors (14172756512).

18100146388 is a wasteful number, since it uses less digits than its factorization.

18100146388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85378106 (or 85378104 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 18100146388 in words is "eighteen billion, one hundred million, one hundred forty-six thousand, three hundred eighty-eight".