12035657172 has 96 divisors (see below), whose sum is σ = 35827190784. Its totient is φ = 3053433600.

The previous prime is 12035657159. The next prime is 12035657219. The reversal of 12035657172 is 27175653021.

It is a happy number.

12035657172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12035657172.

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 31 ways as a sum of consecutive naturals, for example, 111729 + ... + 191192.

It is an arithmetic number, because the mean of its divisors is an integer number (373199904).

Almost surely, 2^12035657172 is an apocalyptic number.

12035657172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12035657172 is an abundant number, since it is smaller than the sum of its proper divisors (23791533612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12035657172 is a wasteful number, since it uses less digits than its factorization.

12035657172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302989 (or 302987 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 12035657172 in words is "twelve billion, thirty-five million, six hundred fifty-seven thousand, one hundred seventy-two".