6349499534909 has 2 divisors, whose sum is σ = 6349499534910. Its totient is φ = 6349499534908.

The previous prime is 6349499534837. The next prime is 6349499534921. The reversal of 6349499534909 is 9094359949436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3327541464025 + 3021958070884 = 1824155^2 + 1738378^2 .

It is a cyclic number.

It is not a de Polignac number, because 6349499534909 - 2²⁰ = 6349498486333 is a prime.

It is a super-2 number, since 2×6349499534909² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6349499534309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174749767454 + 3174749767455.

It is an arithmetic number, because the mean of its divisors is an integer number (3174749767455).

Almost surely, 2^{6349499534909} is an apocalyptic number.

It is an amenable number.

6349499534909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6349499534909 is an equidigital number, since it uses as much as digits as its factorization.

6349499534909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020366720, while the sum is 74.

The spelling of 6349499534909 in words is "six trillion, three hundred forty-nine billion, four hundred ninety-nine million, five hundred thirty-four thousand, nine hundred nine".