12777789953 has 2 divisors, whose sum is σ = 12777789954. Its totient is φ = 12777789952.

The previous prime is 12777789943. The next prime is 12777789967. The reversal of 12777789953 is 35998777721.

12777789953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11251481329 + 1526308624 = 106073^2 + 39068^2 .

It is a cyclic number.

It is not a de Polignac number, because 12777789953 - 2⁶ = 12777789889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12777789953.

It is not a weakly prime, because it can be changed into another prime (12777789923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388894976 + 6388894977.

It is an arithmetic number, because the mean of its divisors is an integer number (6388894977).

Almost surely, 2^12777789953 is an apocalyptic number.

It is an amenable number.

12777789953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12777789953 is an equidigital number, since it uses as much as digits as its factorization.

12777789953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46675440, while the sum is 65.

The spelling of 12777789953 in words is "twelve billion, seven hundred seventy-seven million, seven hundred eighty-nine thousand, nine hundred fifty-three".