7916449577 has 2 divisors, whose sum is σ = 7916449578. Its totient is φ = 7916449576.

The previous prime is 7916449573. The next prime is 7916449601. The reversal of 7916449577 is 7759446197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6206130841 + 1710318736 = 78779^2 + 41356^2 .

It is an emirp because it is prime and its reverse (7759446197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7916449577 - 2² = 7916449573 is a prime.

It is not a weakly prime, because it can be changed into another prime (7916449573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958224788 + 3958224789.

It is an arithmetic number, because the mean of its divisors is an integer number (3958224789).

Almost surely, 2^7916449577 is an apocalyptic number.

It is an amenable number.

7916449577 is a deficient number, since it is larger than the sum of its proper divisors (1).

7916449577 is an equidigital number, since it uses as much as digits as its factorization.

7916449577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13335840, while the sum is 59.

The square root of 7916449577 is about 88974.4321532877. The cubic root of 7916449577 is about 1993.0130846805.

The spelling of 7916449577 in words is "seven billion, nine hundred sixteen million, four hundred forty-nine thousand, five hundred seventy-seven".