7873647469 has 2 divisors, whose sum is σ = 7873647470. Its totient is φ = 7873647468.

The previous prime is 7873647451. The next prime is 7873647473. The reversal of 7873647469 is 9647463787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7063562025 + 810085444 = 84045^2 + 28462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7873647469 is a prime.

It is a super-2 number, since 2×7873647469² (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 (7873647269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936823734 + 3936823735.

It is an arithmetic number, because the mean of its divisors is an integer number (3936823735).

Almost surely, 2^7873647469 is an apocalyptic number.

It is an amenable number.

7873647469 is a deficient number, since it is larger than the sum of its proper divisors (1).

7873647469 is an equidigital number, since it uses as much as digits as its factorization.

7873647469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42674688, while the sum is 61.

The square root of 7873647469 is about 88733.5757703926. The cubic root of 7873647469 is about 1989.4146969352.

The spelling of 7873647469 in words is "seven billion, eight hundred seventy-three million, six hundred forty-seven thousand, four hundred sixty-nine".