7765448969 has 2 divisors, whose sum is σ = 7765448970. Its totient is φ = 7765448968.

The previous prime is 7765448953. The next prime is 7765449011. The reversal of 7765448969 is 9698445677.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7295209744 + 470239225 = 85412^2 + 21685^2 .

It is a cyclic number.

It is not a de Polignac number, because 7765448969 - 2⁴ = 7765448953 is a prime.

It is a super-2 number, since 2×7765448969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7765448269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3882724484 + 3882724485.

It is an arithmetic number, because the mean of its divisors is an integer number (3882724485).

Almost surely, 2^7765448969 is an apocalyptic number.

It is an amenable number.

7765448969 is a deficient number, since it is larger than the sum of its proper divisors (1).

7765448969 is an equidigital number, since it uses as much as digits as its factorization.

7765448969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91445760, while the sum is 65.

The square root of 7765448969 is about 88121.7848718465. The cubic root of 7765448969 is about 1980.2598857082.

The spelling of 7765448969 in words is "seven billion, seven hundred sixty-five million, four hundred forty-eight thousand, nine hundred sixty-nine".