6501249011 has 2 divisors, whose sum is σ = 6501249012. Its totient is φ = 6501249010.

The previous prime is 6501248993. The next prime is 6501249031. The reversal of 6501249011 is 1109421056.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6501249011 is a prime.

It is not a weakly prime, because it can be changed into another prime (6501249031) 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, 3250624505 + 3250624506.

It is an arithmetic number, because the mean of its divisors is an integer number (3250624506).

Almost surely, 2^6501249011 is an apocalyptic number.

6501249011 is a deficient number, since it is larger than the sum of its proper divisors (1).

6501249011 is an equidigital number, since it uses as much as digits as its factorization.

6501249011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 6501249011 is about 80630.3231483044. The cubic root of 6501249011 is about 1866.3751078681.

The spelling of 6501249011 in words is "six billion, five hundred one million, two hundred forty-nine thousand, eleven".