12916376288749 has 2 divisors, whose sum is σ = 12916376288750. Its totient is φ = 12916376288748.

The previous prime is 12916376288743. The next prime is 12916376288771. The reversal of 12916376288749 is 94788267361921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12913831590724 + 2544698025 = 3593582^2 + 50445^2 .

It is a cyclic number.

It is not a de Polignac number, because 12916376288749 - 2²³ = 12916367900141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12916376288743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6458188144374 + 6458188144375.

It is an arithmetic number, because the mean of its divisors is an integer number (6458188144375).

Almost surely, 2^{12916376288749} is an apocalyptic number.

It is an amenable number.

12916376288749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12916376288749 is an equidigital number, since it uses as much as digits as its factorization.

12916376288749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 438939648, while the sum is 73.

The spelling of 12916376288749 in words is "twelve trillion, nine hundred sixteen billion, three hundred seventy-six million, two hundred eighty-eight thousand, seven hundred forty-nine".