13863208657 has 8 divisors (see below), whose sum is σ = 13950256320. Its totient is φ = 13776414000.

The previous prime is 13863208631. The next prime is 13863208663. The reversal of 13863208657 is 75680236831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13863208657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13863208657.

It is not an unprimeable number, because it can be changed into a prime (13863208057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47283 + ... + 173095.

It is an arithmetic number, because the mean of its divisors is an integer number (1743782040).

Almost surely, 2^13863208657 is an apocalyptic number.

It is an amenable number.

13863208657 is a deficient number, since it is larger than the sum of its proper divisors (87047663).

13863208657 is a wasteful number, since it uses less digits than its factorization.

13863208657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126503.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 13863208657 in words is "thirteen billion, eight hundred sixty-three million, two hundred eight thousand, six hundred fifty-seven".