18885573141 has 4 divisors (see below), whose sum is σ = 25180764192. Its totient is φ = 12590382092.

The previous prime is 18885573067. The next prime is 18885573167. The reversal of 18885573141 is 14137558881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18885573141 - 2¹¹ = 18885571093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18885573191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3147595521 + ... + 3147595526.

It is an arithmetic number, because the mean of its divisors is an integer number (6295191048).

Almost surely, 2^18885573141 is an apocalyptic number.

It is an amenable number.

18885573141 is a deficient number, since it is larger than the sum of its proper divisors (6295191051).

18885573141 is an equidigital number, since it uses as much as digits as its factorization.

18885573141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6295191050.

The product of its digits is 1075200, while the sum is 51.

The spelling of 18885573141 in words is "eighteen billion, eight hundred eighty-five million, five hundred seventy-three thousand, one hundred forty-one".