13569286868 has 6 divisors (see below), whose sum is σ = 23746252026. Its totient is φ = 6784643432.

The previous prime is 13569286859. The next prime is 13569286889. The reversal of 13569286868 is 86868296531.

It can be written as a sum of positive squares in only one way, i.e., 12550272784 + 1019014084 = 112028^2 + 31922^2 .

It is a super-2 number, since 2×13569286868² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13569286868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1696160855 + ... + 1696160862.

It is an arithmetic number, because the mean of its divisors is an integer number (3957708671).

Almost surely, 2^13569286868 is an apocalyptic number.

It is an amenable number.

13569286868 is a deficient number, since it is larger than the sum of its proper divisors (10176965158).

13569286868 is a wasteful number, since it uses less digits than its factorization.

13569286868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392321721 (or 3392321719 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 62.

The spelling of 13569286868 in words is "thirteen billion, five hundred sixty-nine million, two hundred eighty-six thousand, eight hundred sixty-eight".