7968667499 has 32 divisors (see below), whose sum is σ = 9437783040. Its totient is φ = 6660352512.

The previous prime is 7968667457. The next prime is 7968667519. The reversal of 7968667499 is 9947668697.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7968667499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7968667439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606332 + ... + 619334.

It is an arithmetic number, because the mean of its divisors is an integer number (294930720).

Almost surely, 2^7968667499 is an apocalyptic number.

7968667499 is a deficient number, since it is larger than the sum of its proper divisors (1469115541).

7968667499 is a wasteful number, since it uses less digits than its factorization.

7968667499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13139.

The product of its digits is 246903552, while the sum is 71.

The square root of 7968667499 is about 89267.3932575607. The cubic root of 7968667499 is about 1997.3855420440.

The spelling of 7968667499 in words is "seven billion, nine hundred sixty-eight million, six hundred sixty-seven thousand, four hundred ninety-nine".