18086819570 has 32 divisors (see below), whose sum is σ = 33062694912. Its totient is φ = 7123004352.

The previous prime is 18086819539. The next prime is 18086819593. The reversal of 18086819570 is 7591868081.

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, 127439 + ... + 228941.

It is an arithmetic number, because the mean of its divisors is an integer number (1033209216).

Almost surely, 2^18086819570 is an apocalyptic number.

18086819570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18086819570 is a deficient number, since it is larger than the sum of its proper divisors (14975875342).

18086819570 is a wasteful number, since it uses less digits than its factorization.

18086819570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101786.

The product of its (nonzero) digits is 967680, while the sum is 53.

The spelling of 18086819570 in words is "eighteen billion, eighty-six million, eight hundred nineteen thousand, five hundred seventy".