12878515254511 has 2 divisors, whose sum is σ = 12878515254512. Its totient is φ = 12878515254510.

The previous prime is 12878515254499. The next prime is 12878515254581. The reversal of 12878515254511 is 11545251587821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12878515254511 - 2⁷ = 12878515254383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12878515254581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439257627255 + 6439257627256.

It is an arithmetic number, because the mean of its divisors is an integer number (6439257627256).

Almost surely, 2^{12878515254511} is an apocalyptic number.

12878515254511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12878515254511 is an equidigital number, since it uses as much as digits as its factorization.

12878515254511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480000, while the sum is 55.

The spelling of 12878515254511 in words is "twelve trillion, eight hundred seventy-eight billion, five hundred fifteen million, two hundred fifty-four thousand, five hundred eleven".