8126716749 has 8 divisors (see below), whose sum is σ = 11066167680. Its totient is φ = 5302538496.

The previous prime is 8126716747. The next prime is 8126716757. The reversal of 8126716749 is 9476176218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8126716749 - 2¹ = 8126716747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8126716747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28818004 + ... + 28818285.

It is an arithmetic number, because the mean of its divisors is an integer number (1383270960).

Almost surely, 2^8126716749 is an apocalyptic number.

It is an amenable number.

8126716749 is a deficient number, since it is larger than the sum of its proper divisors (2939450931).

8126716749 is a wasteful number, since it uses less digits than its factorization.

8126716749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57636339.

The product of its digits is 1016064, while the sum is 51.

The square root of 8126716749 is about 90148.3041937007. The cubic root of 8126716749 is about 2010.5044606449.

The spelling of 8126716749 in words is "eight billion, one hundred twenty-six million, seven hundred sixteen thousand, seven hundred forty-nine".