18112687052 has 12 divisors (see below), whose sum is σ = 31710666960. Its totient is φ = 9052496496.

The previous prime is 18112687051. The next prime is 18112687057. The reversal of 18112687052 is 25078621181.

It is not an unprimeable number, because it can be changed into a prime (18112687051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 951152 + ... + 970007.

It is an arithmetic number, because the mean of its divisors is an integer number (2642555580).

Almost surely, 2^18112687052 is an apocalyptic number.

It is an amenable number.

18112687052 is a deficient number, since it is larger than the sum of its proper divisors (13597979908).

18112687052 is a wasteful number, since it uses less digits than its factorization.

18112687052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923520 (or 1923518 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 18112687052 in words is "eighteen billion, one hundred twelve million, six hundred eighty-seven thousand, fifty-two".