18130778588 has 48 divisors (see below), whose sum is σ = 34836060000. Its totient is φ = 8205539328.

The previous prime is 18130778543. The next prime is 18130778597. The reversal of 18130778588 is 88587703181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1247588 + ... + 1262036.

It is an arithmetic number, because the mean of its divisors is an integer number (725751250).

Almost surely, 2^18130778588 is an apocalyptic number.

It is an amenable number.

18130778588 is a deficient number, since it is larger than the sum of its proper divisors (16705281412).

18130778588 is a wasteful number, since it uses less digits than its factorization.

18130778588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14934 (or 14932 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 56.

The spelling of 18130778588 in words is "eighteen billion, one hundred thirty million, seven hundred seventy-eight thousand, five hundred eighty-eight".