7966534999 has 2 divisors, whose sum is σ = 7966535000. Its totient is φ = 7966534998.

The previous prime is 7966534973. The next prime is 7966535011. The reversal of 7966534999 is 9994356697.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7966534999 - 2⁹ = 7966534487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7966534949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3983267499 + 3983267500.

It is an arithmetic number, because the mean of its divisors is an integer number (3983267500).

Almost surely, 2^7966534999 is an apocalyptic number.

7966534999 is a deficient number, since it is larger than the sum of its proper divisors (1).

7966534999 is an equidigital number, since it uses as much as digits as its factorization.

7966534999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99202320, while the sum is 67.

The square root of 7966534999 is about 89255.4480073906. The cubic root of 7966534999 is about 1997.2073522910.

The spelling of 7966534999 in words is "seven billion, nine hundred sixty-six million, five hundred thirty-four thousand, nine hundred ninety-nine".