7868488469 has 2 divisors, whose sum is σ = 7868488470. Its totient is φ = 7868488468.

The previous prime is 7868488427. The next prime is 7868488489. The reversal of 7868488469 is 9648848687.

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., 7812792100 + 55696369 = 88390^2 + 7463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7868488469 is a prime.

It is a super-2 number, since 2×7868488469² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7868488399 and 7868488408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7868488489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3934244234 + 3934244235.

It is an arithmetic number, because the mean of its divisors is an integer number (3934244235).

Almost surely, 2^7868488469 is an apocalyptic number.

It is an amenable number.

7868488469 is a deficient number, since it is larger than the sum of its proper divisors (1).

7868488469 is an equidigital number, since it uses as much as digits as its factorization.

7868488469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148635648, while the sum is 68.

The square root of 7868488469 is about 88704.5008384580. The cubic root of 7868488469 is about 1988.9800981514.

The spelling of 7868488469 in words is "seven billion, eight hundred sixty-eight million, four hundred eighty-eight thousand, four hundred sixty-nine".