12051672991 has 2 divisors, whose sum is σ = 12051672992. Its totient is φ = 12051672990.

The previous prime is 12051672977. The next prime is 12051673019. The reversal of 12051672991 is 19927615021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12051672991 - 2⁵ = 12051672959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12051672911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6025836495 + 6025836496.

It is an arithmetic number, because the mean of its divisors is an integer number (6025836496).

Almost surely, 2^12051672991 is an apocalyptic number.

12051672991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12051672991 is an equidigital number, since it uses as much as digits as its factorization.

12051672991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 12051672991 in words is "twelve billion, fifty-one million, six hundred seventy-two thousand, nine hundred ninety-one".