6499917041 has 2 divisors, whose sum is σ = 6499917042. Its totient is φ = 6499917040.

The previous prime is 6499917031. The next prime is 6499917077. The reversal of 6499917041 is 1407199946.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3860012641 + 2639904400 = 62129^2 + 51380^2 .

It is a cyclic number.

It is not a de Polignac number, because 6499917041 - 2⁶ = 6499916977 is a prime.

It is not a weakly prime, because it can be changed into another prime (6499917031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249958520 + 3249958521.

It is an arithmetic number, because the mean of its divisors is an integer number (3249958521).

Almost surely, 2^6499917041 is an apocalyptic number.

It is an amenable number.

6499917041 is a deficient number, since it is larger than the sum of its proper divisors (1).

6499917041 is an equidigital number, since it uses as much as digits as its factorization.

6499917041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 6499917041 is about 80622.0629914665. The cubic root of 6499917041 is about 1866.2476387494.

The spelling of 6499917041 in words is "six billion, four hundred ninety-nine million, nine hundred seventeen thousand, forty-one".