12140678491 has 2 divisors, whose sum is σ = 12140678492. Its totient is φ = 12140678490.

The previous prime is 12140678489. The next prime is 12140678507. The reversal of 12140678491 is 19487604121.

12140678491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12140678491 - 2¹ = 12140678489 is a prime.

Together with 12140678489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12140678191) by changing a digit.

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 as a sum of consecutive naturals, namely, 6070339245 + 6070339246.

It is an arithmetic number, because the mean of its divisors is an integer number (6070339246).

Almost surely, 2^12140678491 is an apocalyptic number.

12140678491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12140678491 is an equidigital number, since it uses as much as digits as its factorization.

12140678491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 12140678491 in words is "twelve billion, one hundred forty million, six hundred seventy-eight thousand, four hundred ninety-one".