18036629852 has 24 divisors (see below), whose sum is σ = 33297196800. Its totient is φ = 8525197296.

The previous prime is 18036629851. The next prime is 18036629867. The reversal of 18036629852 is 25892663081.

It is a self number, because there is not a number n which added to its sum of digits gives 18036629852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18036629851) 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, 221102 + ... + 291477.

It is an arithmetic number, because the mean of its divisors is an integer number (1387383200).

Almost surely, 2^18036629852 is an apocalyptic number.

It is an amenable number.

18036629852 is a deficient number, since it is larger than the sum of its proper divisors (15260566948).

18036629852 is a wasteful number, since it uses less digits than its factorization.

18036629852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513065 (or 513063 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 18036629852 in words is "eighteen billion, thirty-six million, six hundred twenty-nine thousand, eight hundred fifty-two".