12863968408580 has 12 divisors (see below), whose sum is σ = 27014333658060. Its totient is φ = 5145587363424.

The previous prime is 12863968408553. The next prime is 12863968408591. The reversal of 12863968408580 is 8580486936821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8219012401924 + 4644956006656 = 2866882^2 + 2155216^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12863968408580.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321599210195 + ... + 321599210234.

It is an arithmetic number, because the mean of its divisors is an integer number (2251194471505).

Almost surely, 2^{12863968408580} is an apocalyptic number.

12863968408580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12863968408580 is an abundant number, since it is smaller than the sum of its proper divisors (14150365249480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12863968408580 is a wasteful number, since it uses less digits than its factorization.

12863968408580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643198420438 (or 643198420436 counting only the distinct ones).

The product of its (nonzero) digits is 159252480, while the sum is 68.

The spelling of 12863968408580 in words is "twelve trillion, eight hundred sixty-three billion, nine hundred sixty-eight million, four hundred eight thousand, five hundred eighty".