13831038887 has 2 divisors, whose sum is σ = 13831038888. Its totient is φ = 13831038886.

The previous prime is 13831038883. The next prime is 13831038901. The reversal of 13831038887 is 78883013831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13831038887 - 2² = 13831038883 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13831038883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6915519443 + 6915519444.

It is an arithmetic number, because the mean of its divisors is an integer number (6915519444).

Almost surely, 2^13831038887 is an apocalyptic number.

13831038887 is a deficient number, since it is larger than the sum of its proper divisors (1).

13831038887 is an equidigital number, since it uses as much as digits as its factorization.

13831038887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 13831038887 in words is "thirteen billion, eight hundred thirty-one million, thirty-eight thousand, eight hundred eighty-seven".