13639013503 has 2 divisors, whose sum is σ = 13639013504. Its totient is φ = 13639013502.

The previous prime is 13639013471. The next prime is 13639013513. The reversal of 13639013503 is 30531093631.

It is a strong prime.

It is an emirp because it is prime and its reverse (30531093631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13639013503 - 2⁵ = 13639013471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13639013513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6819506751 + 6819506752.

It is an arithmetic number, because the mean of its divisors is an integer number (6819506752).

Almost surely, 2^13639013503 is an apocalyptic number.

13639013503 is a deficient number, since it is larger than the sum of its proper divisors (1).

13639013503 is an equidigital number, since it uses as much as digits as its factorization.

13639013503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 34.

The spelling of 13639013503 in words is "thirteen billion, six hundred thirty-nine million, thirteen thousand, five hundred three".