13258813668 has 12 divisors (see below), whose sum is σ = 30937231920. Its totient is φ = 4419604552.

The previous prime is 13258813649. The next prime is 13258813679. The reversal of 13258813668 is 86631885231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13258813668² (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 13258813668.

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, 552450558 + ... + 552450581.

It is an arithmetic number, because the mean of its divisors is an integer number (2578102660).

Almost surely, 2^13258813668 is an apocalyptic number.

It is an amenable number.

13258813668 is an abundant number, since it is smaller than the sum of its proper divisors (17678418252).

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

13258813668 is a wasteful number, since it uses less digits than its factorization.

13258813668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104901146 (or 1104901144 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The spelling of 13258813668 in words is "thirteen billion, two hundred fifty-eight million, eight hundred thirteen thousand, six hundred sixty-eight".