12154679159267 has 2 divisors, whose sum is σ = 12154679159268. Its totient is φ = 12154679159266.

The previous prime is 12154679159243. The next prime is 12154679159317. The reversal of 12154679159267 is 76295197645121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12154679159267 - 2²² = 12154674964963 is a prime.

It is not a weakly prime, because it can be changed into another prime (12154679159767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6077339579633 + 6077339579634.

It is an arithmetic number, because the mean of its divisors is an integer number (6077339579634).

Almost surely, 2^{12154679159267} is an apocalyptic number.

12154679159267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12154679159267 is an equidigital number, since it uses as much as digits as its factorization.

12154679159267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57153600, while the sum is 65.

The spelling of 12154679159267 in words is "twelve trillion, one hundred fifty-four billion, six hundred seventy-nine million, one hundred fifty-nine thousand, two hundred sixty-seven".