12146693387 has 2 divisors, whose sum is σ = 12146693388. Its totient is φ = 12146693386.

The previous prime is 12146693359. The next prime is 12146693399. The reversal of 12146693387 is 78339664121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12146693387 - 2²⁴ = 12129916171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12146693347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6073346693 + 6073346694.

It is an arithmetic number, because the mean of its divisors is an integer number (6073346694).

Almost surely, 2^12146693387 is an apocalyptic number.

12146693387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12146693387 is an equidigital number, since it uses as much as digits as its factorization.

12146693387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The spelling of 12146693387 in words is "twelve billion, one hundred forty-six million, six hundred ninety-three thousand, three hundred eighty-seven".