13687571903 has 2 divisors, whose sum is σ = 13687571904. Its totient is φ = 13687571902.

The previous prime is 13687571893. The next prime is 13687571941. The reversal of 13687571903 is 30917578631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13687571903 - 2¹⁰ = 13687570879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13687571983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6843785951 + 6843785952.

It is an arithmetic number, because the mean of its divisors is an integer number (6843785952).

Almost surely, 2^13687571903 is an apocalyptic number.

13687571903 is a deficient number, since it is larger than the sum of its proper divisors (1).

13687571903 is an equidigital number, since it uses as much as digits as its factorization.

13687571903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 50.

The spelling of 13687571903 in words is "thirteen billion, six hundred eighty-seven million, five hundred seventy-one thousand, nine hundred three".