12049196991 has 32 divisors (see below), whose sum is σ = 17520427008. Its totient is φ = 7321608960.

The previous prime is 12049196983. The next prime is 12049197011. The reversal of 12049196991 is 19969194021.

It is a happy number.

It is not a de Polignac number, because 12049196991 - 2³ = 12049196983 is a prime.

It is a super-3 number, since 3×12049196991³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12049196941) 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 31 ways as a sum of consecutive naturals, for example, 1014610 + ... + 1026416.

It is an arithmetic number, because the mean of its divisors is an integer number (547513344).

Almost surely, 2^12049196991 is an apocalyptic number.

12049196991 is a deficient number, since it is larger than the sum of its proper divisors (5471230017).

12049196991 is a wasteful number, since it uses less digits than its factorization.

12049196991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12151.

The product of its (nonzero) digits is 314928, while the sum is 51.

The spelling of 12049196991 in words is "twelve billion, forty-nine million, one hundred ninety-six thousand, nine hundred ninety-one".