18836685052 has 24 divisors (see below), whose sum is σ = 33892528320. Its totient is φ = 9153668160.

The previous prime is 18836685041. The next prime is 18836685053. The reversal of 18836685052 is 25058663881.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18836685053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64974 + ... + 204682.

It is an arithmetic number, because the mean of its divisors is an integer number (1412188680).

Almost surely, 2^18836685052 is an apocalyptic number.

It is an amenable number.

18836685052 is a deficient number, since it is larger than the sum of its proper divisors (15055843268).

18836685052 is a wasteful number, since it uses less digits than its factorization.

18836685052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140661 (or 140659 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 18836685052 in words is "eighteen billion, eight hundred thirty-six million, six hundred eighty-five thousand, fifty-two".