18351701852 has 24 divisors (see below), whose sum is σ = 35849839872. Its totient is φ = 8147689200.

The previous prime is 18351701839. The next prime is 18351701857. The reversal of 18351701852 is 25810715381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18351701857) 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 7 ways as a sum of consecutive naturals, for example, 4847924 + ... + 4851707.

It is an arithmetic number, because the mean of its divisors is an integer number (1493743328).

Almost surely, 2^18351701852 is an apocalyptic number.

It is an amenable number.

18351701852 is a deficient number, since it is larger than the sum of its proper divisors (17498138020).

18351701852 is a wasteful number, since it uses less digits than its factorization.

18351701852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699689 (or 9699687 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 18351701852 in words is "eighteen billion, three hundred fifty-one million, seven hundred one thousand, eight hundred fifty-two".