7990456469 has 2 divisors, whose sum is σ = 7990456470. Its totient is φ = 7990456468.

The previous prime is 7990456447. The next prime is 7990456499. The reversal of 7990456469 is 9646540997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5877215569 + 2113240900 = 76663^2 + 45970^2 .

It is an emirp because it is prime and its reverse (9646540997) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7990456469 is a prime.

It is a super-2 number, since 2×7990456469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7990456499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3995228234 + 3995228235.

It is an arithmetic number, because the mean of its divisors is an integer number (3995228235).

Almost surely, 2^7990456469 is an apocalyptic number.

It is an amenable number.

7990456469 is a deficient number, since it is larger than the sum of its proper divisors (1).

7990456469 is an equidigital number, since it uses as much as digits as its factorization.

7990456469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The square root of 7990456469 is about 89389.3532194970. The cubic root of 7990456469 is about 1999.2043892938.

The spelling of 7990456469 in words is "seven billion, nine hundred ninety million, four hundred fifty-six thousand, four hundred sixty-nine".