6390019039 has 2 divisors, whose sum is σ = 6390019040. Its totient is φ = 6390019038.

The previous prime is 6390019037. The next prime is 6390019079. The reversal of 6390019039 is 9309100936.

It is an a-pointer prime, because the next prime (6390019079) can be obtained adding 6390019039 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6390019039 - 2¹ = 6390019037 is a prime.

Together with 6390019037, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6390018992 and 6390019010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6390019037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195009519 + 3195009520.

It is an arithmetic number, because the mean of its divisors is an integer number (3195009520).

Almost surely, 2^6390019039 is an apocalyptic number.

6390019039 is a deficient number, since it is larger than the sum of its proper divisors (1).

6390019039 is an equidigital number, since it uses as much as digits as its factorization.

6390019039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 6390019039 is about 79937.5946535796. The cubic root of 6390019039 is about 1855.6698746745.

The spelling of 6390019039 in words is "six billion, three hundred ninety million, nineteen thousand, thirty-nine".