13887681503 has 2 divisors, whose sum is σ = 13887681504. Its totient is φ = 13887681502.

The previous prime is 13887681473. The next prime is 13887681517. The reversal of 13887681503 is 30518678831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13887681503 - 2¹² = 13887677407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13887681583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6943840751 + 6943840752.

It is an arithmetic number, because the mean of its divisors is an integer number (6943840752).

Almost surely, 2^13887681503 is an apocalyptic number.

13887681503 is a deficient number, since it is larger than the sum of its proper divisors (1).

13887681503 is an equidigital number, since it uses as much as digits as its factorization.

13887681503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 13887681503 in words is "thirteen billion, eight hundred eighty-seven million, six hundred eighty-one thousand, five hundred three".