6423074639 has 2 divisors, whose sum is σ = 6423074640. Its totient is φ = 6423074638.

The previous prime is 6423074573. The next prime is 6423074663. The reversal of 6423074639 is 9364703246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6423074639 - 2³² = 2128107343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6423074639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6423074939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211537319 + 3211537320.

It is an arithmetic number, because the mean of its divisors is an integer number (3211537320).

Almost surely, 2^6423074639 is an apocalyptic number.

6423074639 is a deficient number, since it is larger than the sum of its proper divisors (1).

6423074639 is an equidigital number, since it uses as much as digits as its factorization.

6423074639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 6423074639 is about 80144.0867375753. The cubic root of 6423074639 is about 1858.8641694267.

The spelling of 6423074639 in words is "six billion, four hundred twenty-three million, seventy-four thousand, six hundred thirty-nine".