7725676789 has 2 divisors, whose sum is σ = 7725676790. Its totient is φ = 7725676788.

The previous prime is 7725676753. The next prime is 7725676853. The reversal of 7725676789 is 9876765277.

It is an a-pointer prime, because the next prime (7725676853) can be obtained adding 7725676789 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6763746564 + 961930225 = 82242^2 + 31015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7725676789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7725676789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7725676729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3862838394 + 3862838395.

It is an arithmetic number, because the mean of its divisors is an integer number (3862838395).

Almost surely, 2^7725676789 is an apocalyptic number.

It is an amenable number.

7725676789 is a deficient number, since it is larger than the sum of its proper divisors (1).

7725676789 is an equidigital number, since it uses as much as digits as its factorization.

7725676789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62233920, while the sum is 64.

The square root of 7725676789 is about 87895.8291900133. The cubic root of 7725676789 is about 1976.8733420216.

The spelling of 7725676789 in words is "seven billion, seven hundred twenty-five million, six hundred seventy-six thousand, seven hundred eighty-nine".