12776275015 has 16 divisors (see below), whose sum is σ = 17691867648. Its totient is φ = 8675814816.

The previous prime is 12776274997. The next prime is 12776275021. The reversal of 12776275015 is 51057267721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12776275015 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1768417 + ... + 1775626.

It is an arithmetic number, because the mean of its divisors is an integer number (1105741728).

Almost surely, 2^12776275015 is an apocalyptic number.

12776275015 is a deficient number, since it is larger than the sum of its proper divisors (4915592633).

12776275015 is a wasteful number, since it uses less digits than its factorization.

12776275015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544158.

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 12776275015 in words is "twelve billion, seven hundred seventy-six million, two hundred seventy-five thousand, fifteen".