12185001798 has 16 divisors (see below), whose sum is σ = 24389815296. Its totient is φ = 4058365320.

The previous prime is 12185001781. The next prime is 12185001823. The reversal of 12185001798 is 89710058121.

12185001798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 817486 + ... + 832257.

It is an arithmetic number, because the mean of its divisors is an integer number (1524363456).

Almost surely, 2^12185001798 is an apocalyptic number.

12185001798 is an abundant number, since it is smaller than the sum of its proper divisors (12204813498).

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

12185001798 is a wasteful number, since it uses less digits than its factorization.

12185001798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650979.

The product of its (nonzero) digits is 40320, while the sum is 42.

The spelling of 12185001798 in words is "twelve billion, one hundred eighty-five million, one thousand, seven hundred ninety-eight".