7916320109 has 2 divisors, whose sum is σ = 7916320110. Its totient is φ = 7916320108.

The previous prime is 7916320073. The next prime is 7916320117. The reversal of 7916320109 is 9010236197.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7665002500 + 251317609 = 87550^2 + 15853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7916320109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7916320169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958160054 + 3958160055.

It is an arithmetic number, because the mean of its divisors is an integer number (3958160055).

Almost surely, 2^7916320109 is an apocalyptic number.

It is an amenable number.

7916320109 is a deficient number, since it is larger than the sum of its proper divisors (1).

7916320109 is an equidigital number, since it uses as much as digits as its factorization.

7916320109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 7916320109 is about 88973.7045929863. The cubic root of 7916320109 is about 1993.0022198426.

The spelling of 7916320109 in words is "seven billion, nine hundred sixteen million, three hundred twenty thousand, one hundred nine".