12954776489 has 2 divisors, whose sum is σ = 12954776490. Its totient is φ = 12954776488.

The previous prime is 12954776459. The next prime is 12954776501. The reversal of 12954776489 is 98467745921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8610912025 + 4343864464 = 92795^2 + 65908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12954776489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12954776459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6477388244 + 6477388245.

It is an arithmetic number, because the mean of its divisors is an integer number (6477388245).

Almost surely, 2^12954776489 is an apocalyptic number.

It is an amenable number.

12954776489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12954776489 is an equidigital number, since it uses as much as digits as its factorization.

12954776489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 62.

The spelling of 12954776489 in words is "twelve billion, nine hundred fifty-four million, seven hundred seventy-six thousand, four hundred eighty-nine".