18362397852 has 72 divisors (see below), whose sum is σ = 49464769536. Its totient is φ = 5730097824.

The previous prime is 18362397839. The next prime is 18362397931. The reversal of 18362397852 is 25879326381.

18362397852 is a `hidden beast` number, since 1 + 8 + 3 + 623 + 9 + 7 + 8 + 5 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 197008 + ... + 274839.

It is an arithmetic number, because the mean of its divisors is an integer number (687010688).

Almost surely, 2^18362397852 is an apocalyptic number.

18362397852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18362397852 is an abundant number, since it is smaller than the sum of its proper divisors (31102371684).

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

18362397852 is a wasteful number, since it uses less digits than its factorization.

18362397852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471927 (or 471922 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 18362397852 in words is "eighteen billion, three hundred sixty-two million, three hundred ninety-seven thousand, eight hundred fifty-two".