13005515045863 has 2 divisors, whose sum is σ = 13005515045864. Its totient is φ = 13005515045862.

The previous prime is 13005515045773. The next prime is 13005515045867. The reversal of 13005515045863 is 36854051550031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13005515045863 - 2⁹ = 13005515045351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13005515045867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6502757522931 + 6502757522932.

It is an arithmetic number, because the mean of its divisors is an integer number (6502757522932).

Almost surely, 2^{13005515045863} is an apocalyptic number.

13005515045863 is a deficient number, since it is larger than the sum of its proper divisors (1).

13005515045863 is an equidigital number, since it uses as much as digits as its factorization.

13005515045863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080000, while the sum is 46.

Adding to 13005515045863 its reverse (36854051550031), we get a palindrome (49859566595894).

The spelling of 13005515045863 in words is "thirteen trillion, five billion, five hundred fifteen million, forty-five thousand, eight hundred sixty-three".