6485511239 has 2 divisors, whose sum is σ = 6485511240. Its totient is φ = 6485511238.

The previous prime is 6485511233. The next prime is 6485511289. The reversal of 6485511239 is 9321155846.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6485511239 - 2¹² = 6485507143 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6485511239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6485511233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3242755619 + 3242755620.

It is an arithmetic number, because the mean of its divisors is an integer number (3242755620).

Almost surely, 2^6485511239 is an apocalyptic number.

6485511239 is a deficient number, since it is larger than the sum of its proper divisors (1).

6485511239 is an equidigital number, since it uses as much as digits as its factorization.

6485511239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 6485511239 is about 80532.6718729734. The cubic root of 6485511239 is about 1864.8678939553.

The spelling of 6485511239 in words is "six billion, four hundred eighty-five million, five hundred eleven thousand, two hundred thirty-nine".