13286815807 has 2 divisors, whose sum is σ = 13286815808. Its totient is φ = 13286815806.

The previous prime is 13286815793. The next prime is 13286815813. The reversal of 13286815807 is 70851868231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13286815807 is a prime.

It is a super-2 number, since 2×13286815807² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13286815207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6643407903 + 6643407904.

It is an arithmetic number, because the mean of its divisors is an integer number (6643407904).

Almost surely, 2^13286815807 is an apocalyptic number.

13286815807 is a deficient number, since it is larger than the sum of its proper divisors (1).

13286815807 is an equidigital number, since it uses as much as digits as its factorization.

13286815807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 13286815807 in words is "thirteen billion, two hundred eighty-six million, eight hundred fifteen thousand, eight hundred seven".