12139927567 has 2 divisors, whose sum is σ = 12139927568. Its totient is φ = 12139927566.

The previous prime is 12139927549. The next prime is 12139927633. The reversal of 12139927567 is 76572993121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12139927567 - 2¹⁹ = 12139403279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12139927517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069963783 + 6069963784.

It is an arithmetic number, because the mean of its divisors is an integer number (6069963784).

Almost surely, 2^12139927567 is an apocalyptic number.

12139927567 is a deficient number, since it is larger than the sum of its proper divisors (1).

12139927567 is an equidigital number, since it uses as much as digits as its factorization.

12139927567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 52.

The spelling of 12139927567 in words is "twelve billion, one hundred thirty-nine million, nine hundred twenty-seven thousand, five hundred sixty-seven".