6249639499 has 2 divisors, whose sum is σ = 6249639500. Its totient is φ = 6249639498.

The previous prime is 6249639469. The next prime is 6249639509. The reversal of 6249639499 is 9949369426.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6249639499 - 2¹⁷ = 6249508427 is a prime.

It is not a weakly prime, because it can be changed into another prime (6249639449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3124819749 + 3124819750.

It is an arithmetic number, because the mean of its divisors is an integer number (3124819750).

Almost surely, 2^6249639499 is an apocalyptic number.

6249639499 is a deficient number, since it is larger than the sum of its proper divisors (1).

6249639499 is an equidigital number, since it uses as much as digits as its factorization.

6249639499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22674816, while the sum is 61.

The square root of 6249639499 is about 79054.6614628132. The cubic root of 6249639499 is about 1841.9803327182.

The spelling of 6249639499 in words is "six billion, two hundred forty-nine million, six hundred thirty-nine thousand, four hundred ninety-nine".