7716898993 has 2 divisors, whose sum is σ = 7716898994. Its totient is φ = 7716898992.

The previous prime is 7716898979. The next prime is 7716899089. The reversal of 7716898993 is 3998986177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5427563584 + 2289335409 = 73672^2 + 47847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7716898993 is a prime.

It is not a weakly prime, because it can be changed into another prime (7716898093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3858449496 + 3858449497.

It is an arithmetic number, because the mean of its divisors is an integer number (3858449497).

Almost surely, 2^7716898993 is an apocalyptic number.

It is an amenable number.

7716898993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7716898993 is an equidigital number, since it uses as much as digits as its factorization.

7716898993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 67.

The square root of 7716898993 is about 87845.8820491889. The cubic root of 7716898993 is about 1976.1243605211.

The spelling of 7716898993 in words is "seven billion, seven hundred sixteen million, eight hundred ninety-eight thousand, nine hundred ninety-three".