12863611332265 has 8 divisors (see below), whose sum is σ = 16344353222280. Its totient is φ = 9685542650112.

The previous prime is 12863611332179. The next prime is 12863611332283. The reversal of 12863611332265 is 56223311636821.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5266708294761 + 7596903037504 = 2294931^2 + 2756248^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12863611332265 - 2³⁷ = 12726172378793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75668301870 + ... + 75668302039.

It is an arithmetic number, because the mean of its divisors is an integer number (2043044152785).

Almost surely, 2^{12863611332265} is an apocalyptic number.

It is an amenable number.

12863611332265 is a deficient number, since it is larger than the sum of its proper divisors (3480741890015).

12863611332265 is a wasteful number, since it uses less digits than its factorization.

12863611332265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151336603931.

The product of its digits is 1866240, while the sum is 49.

The spelling of 12863611332265 in words is "twelve trillion, eight hundred sixty-three billion, six hundred eleven million, three hundred thirty-two thousand, two hundred sixty-five".