12861086026 has 8 divisors (see below), whose sum is σ = 19292271300. Its totient is φ = 6430328928.

The previous prime is 12861086023. The next prime is 12861086081. The reversal of 12861086026 is 62068016821.

It can be written as a sum of positive squares in 2 ways, for example, as 12540640225 + 320445801 = 111985^2 + 17901^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12861086026.

It is not an unprimeable number, because it can be changed into a prime (12861086023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16701 + ... + 161248.

Almost surely, 2^12861086026 is an apocalyptic number.

12861086026 is a deficient number, since it is larger than the sum of its proper divisors (6431185274).

12861086026 is a wasteful number, since it uses less digits than its factorization.

12861086026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214088.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 12861086026 in words is "twelve billion, eight hundred sixty-one million, eighty-six thousand, twenty-six".