6536689139 has 2 divisors, whose sum is σ = 6536689140. Its totient is φ = 6536689138.

The previous prime is 6536689099. The next prime is 6536689147. The reversal of 6536689139 is 9319866356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6536689139 - 2³² = 2241721843 is a prime.

It is a super-2 number, since 2×6536689139² = 85456609799841122642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6536689189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3268344569 + 3268344570.

It is an arithmetic number, because the mean of its divisors is an integer number (3268344570).

Almost surely, 2^6536689139 is an apocalyptic number.

6536689139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6536689139 is an equidigital number, since it uses as much as digits as its factorization.

6536689139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 56.

The square root of 6536689139 is about 80849.7936855747. The cubic root of 6536689139 is about 1869.7603417119.

The spelling of 6536689139 in words is "six billion, five hundred thirty-six million, six hundred eighty-nine thousand, one hundred thirty-nine".