6716984660249 has 4 divisors (see below), whose sum is σ = 6717086361780. Its totient is φ = 6716882958720.

The previous prime is 6716984660237. The next prime is 6716984660279. The reversal of 6716984660249 is 9420664896176.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3077638662400 + 3639345997849 = 1754320^2 + 1907707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6716984660249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6716984660279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50751632 + ... + 50883809.

It is an arithmetic number, because the mean of its divisors is an integer number (1679271590445).

Almost surely, 2^{6716984660249} is an apocalyptic number.

It is an amenable number.

6716984660249 is a deficient number, since it is larger than the sum of its proper divisors (101701531).

6716984660249 is a wasteful number, since it uses less digits than its factorization.

6716984660249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101701530.

The product of its (nonzero) digits is 188116992, while the sum is 68.

The spelling of 6716984660249 in words is "six trillion, seven hundred sixteen billion, nine hundred eighty-four million, six hundred sixty thousand, two hundred forty-nine".