12777542213699 has 2 divisors, whose sum is σ = 12777542213700. Its totient is φ = 12777542213698.

The previous prime is 12777542213627. The next prime is 12777542213717. The reversal of 12777542213699 is 99631224577721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12777542213699 is a prime.

It is not a weakly prime, because it can be changed into another prime (12777562213699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388771106849 + 6388771106850.

It is an arithmetic number, because the mean of its divisors is an integer number (6388771106850).

Almost surely, 2^{12777542213699} is an apocalyptic number.

12777542213699 is a deficient number, since it is larger than the sum of its proper divisors (1).

12777542213699 is an equidigital number, since it uses as much as digits as its factorization.

12777542213699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80015040, while the sum is 65.

The spelling of 12777542213699 in words is "twelve trillion, seven hundred seventy-seven billion, five hundred forty-two million, two hundred thirteen thousand, six hundred ninety-nine".