18152776852 has 24 divisors (see below), whose sum is σ = 38216373440. Its totient is φ = 7370300160.

The previous prime is 18152776847. The next prime is 18152776853. The reversal of 18152776852 is 25867725181.

It is a self number, because there is not a number n which added to its sum of digits gives 18152776852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18152776853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17060349 + ... + 17061412.

Almost surely, 2^18152776852 is an apocalyptic number.

It is an amenable number.

18152776852 is an abundant number, since it is smaller than the sum of its proper divisors (20063596588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18152776852 is a wasteful number, since it uses less digits than its factorization.

18152776852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34121791 (or 34121789 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 52.

The spelling of 18152776852 in words is "eighteen billion, one hundred fifty-two million, seven hundred seventy-six thousand, eight hundred fifty-two".