9709922869 has 2 divisors, whose sum is σ = 9709922870. Its totient is φ = 9709922868.

The previous prime is 9709922779. The next prime is 9709922879. The reversal of 9709922869 is 9682299079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7236054225 + 2473868644 = 85065^2 + 49738^2 .

It is a cyclic number.

It is not a de Polignac number, because 9709922869 - 2⁷ = 9709922741 is a prime.

It is a super-2 number, since 2×9709922869² (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 (9709922879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4854961434 + 4854961435.

It is an arithmetic number, because the mean of its divisors is an integer number (4854961435).

Almost surely, 2^9709922869 is an apocalyptic number.

It is an amenable number.

9709922869 is a deficient number, since it is larger than the sum of its proper divisors (1).

9709922869 is an equidigital number, since it uses as much as digits as its factorization.

9709922869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The square root of 9709922869 is about 98538.9408761836. The cubic root of 9709922869 is about 2133.3982116310.

The spelling of 9709922869 in words is "nine billion, seven hundred nine million, nine hundred twenty-two thousand, eight hundred sixty-nine".