18885573142 has 24 divisors (see below), whose sum is σ = 28862980776. Its totient is φ = 9267733728.

The previous prime is 18885573067. The next prime is 18885573167. The reversal of 18885573142 is 24137558881.

It is a self number, because there is not a number n which added to its sum of digits gives 18885573142.

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, 2537058 + ... + 2544490.

It is an arithmetic number, because the mean of its divisors is an integer number (1202624199).

Almost surely, 2^18885573142 is an apocalyptic number.

18885573142 is a deficient number, since it is larger than the sum of its proper divisors (9977407634).

18885573142 is an equidigital number, since it uses as much as digits as its factorization.

18885573142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852 (or 7785 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 52.

The spelling of 18885573142 in words is "eighteen billion, eight hundred eighty-five million, five hundred seventy-three thousand, one hundred forty-two".