9977307869 has 2 divisors, whose sum is σ = 9977307870. Its totient is φ = 9977307868.

The previous prime is 9977307859. The next prime is 9977307877. The reversal of 9977307869 is 9687037799.

9977307869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5422407769 + 4554900100 = 73637^2 + 67490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9977307869 is a prime.

It is a super-2 number, since 2×9977307869² (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 (9977307859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988653934 + 4988653935.

It is an arithmetic number, because the mean of its divisors is an integer number (4988653935).

Almost surely, 2^9977307869 is an apocalyptic number.

It is an amenable number.

9977307869 is a deficient number, since it is larger than the sum of its proper divisors (1).

9977307869 is an equidigital number, since it uses as much as digits as its factorization.

9977307869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36006768, while the sum is 65.

The square root of 9977307869 is about 99886.4749052643. The cubic root of 9977307869 is about 2152.8038320138.

The spelling of 9977307869 in words is "nine billion, nine hundred seventy-seven million, three hundred seven thousand, eight hundred sixty-nine".