12127196389 has 16 divisors (see below), whose sum is σ = 15471244800. Its totient is φ = 9229998960.

The previous prime is 12127196387. The next prime is 12127196401. The reversal of 12127196389 is 98369172121.

It is a happy number.

It is not a de Polignac number, because 12127196389 - 2¹ = 12127196387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127196387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1828039 + ... + 1834660.

It is an arithmetic number, because the mean of its divisors is an integer number (966952800).

Almost surely, 2^12127196389 is an apocalyptic number.

It is an amenable number.

12127196389 is a deficient number, since it is larger than the sum of its proper divisors (3344048411).

12127196389 is a wasteful number, since it uses less digits than its factorization.

12127196389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662760.

The product of its digits is 326592, while the sum is 49.

The spelling of 12127196389 in words is "twelve billion, one hundred twenty-seven million, one hundred ninety-six thousand, three hundred eighty-nine".