5188931639 has 2 divisors, whose sum is σ = 5188931640. Its totient is φ = 5188931638.

The previous prime is 5188931617. The next prime is 5188931701. The reversal of 5188931639 is 9361398815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5188931639 - 2⁸ = 5188931383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5188931039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2594465819 + 2594465820.

It is an arithmetic number, because the mean of its divisors is an integer number (2594465820).

Almost surely, 2^5188931639 is an apocalyptic number.

5188931639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5188931639 is an equidigital number, since it uses as much as digits as its factorization.

5188931639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 53.

The square root of 5188931639 is about 72034.2393518527. The cubic root of 5188931639 is about 1731.2481263405.

The spelling of 5188931639 in words is "five billion, one hundred eighty-eight million, nine hundred thirty-one thousand, six hundred thirty-nine".