12357985172 has 48 divisors (see below), whose sum is σ = 23952297600. Its totient is φ = 5542846848.

The previous prime is 12357985103. The next prime is 12357985201. The reversal of 12357985172 is 27158975321.

12357985172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12357985172² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12357985172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431078 + ... + 458850.

It is an arithmetic number, because the mean of its divisors is an integer number (499006200).

Almost surely, 2^12357985172 is an apocalyptic number.

It is an amenable number.

12357985172 is a deficient number, since it is larger than the sum of its proper divisors (11594312428).

12357985172 is a wasteful number, since it uses less digits than its factorization.

12357985172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28032 (or 28030 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 50.

The spelling of 12357985172 in words is "twelve billion, three hundred fifty-seven million, nine hundred eighty-five thousand, one hundred seventy-two".