7916646329 has 2 divisors, whose sum is σ = 7916646330. Its totient is φ = 7916646328.

The previous prime is 7916646319. The next prime is 7916646379. The reversal of 7916646329 is 9236466197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6470593600 + 1446052729 = 80440^2 + 38027^2 .

It is a cyclic number.

It is not a de Polignac number, because 7916646329 - 2⁴ = 7916646313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7916646319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958323164 + 3958323165.

It is an arithmetic number, because the mean of its divisors is an integer number (3958323165).

Almost surely, 2^7916646329 is an apocalyptic number.

It is an amenable number.

7916646329 is a deficient number, since it is larger than the sum of its proper divisors (1).

7916646329 is an equidigital number, since it uses as much as digits as its factorization.

7916646329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 53.

The square root of 7916646329 is about 88975.5378123673. The cubic root of 7916646329 is about 1993.0295957043.

The spelling of 7916646329 in words is "seven billion, nine hundred sixteen million, six hundred forty-six thousand, three hundred twenty-nine".