13961302866 has 96 divisors (see below), whose sum is σ = 37236925440. Its totient is φ = 3691088352.

The previous prime is 13961302843. The next prime is 13961302867. The reversal of 13961302866 is 66820316931.

13961302866 is a `hidden beast` number, since 1 + 3 + 9 + 613 + 0 + 28 + 6 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (13961302867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35131 + ... + 170753.

It is an arithmetic number, because the mean of its divisors is an integer number (387884640).

Almost surely, 2^13961302866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13961302866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18618462720).

13961302866 is an abundant number, since it is smaller than the sum of its proper divisors (23275622574).

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

13961302866 is a wasteful number, since it uses less digits than its factorization.

13961302866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135700 (or 135697 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 13961302866 in words is "thirteen billion, nine hundred sixty-one million, three hundred two thousand, eight hundred sixty-six".