9770880779 has 4 divisors (see below), whose sum is σ = 10659142680. Its totient is φ = 8882618880.

The previous prime is 9770880761. The next prime is 9770880799.

9770880779 is nontrivially palindromic in base 10.

9770880779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9770880779 - 2¹² = 9770876683 is a prime.

It is a super-2 number, since 2×9770880779² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9770880719) 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 in 3 ways as a sum of consecutive naturals, for example, 444130934 + ... + 444130955.

It is an arithmetic number, because the mean of its divisors is an integer number (2664785670).

Almost surely, 2^9770880779 is an apocalyptic number.

9770880779 is a deficient number, since it is larger than the sum of its proper divisors (888261901).

9770880779 is a wasteful number, since it uses less digits than its factorization.

9770880779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888261900.

The product of its (nonzero) digits is 12446784, while the sum is 62.

The square root of 9770880779 is about 98847.7656753050. The cubic root of 9770880779 is about 2137.8533208174.

The spelling of 9770880779 in words is "nine billion, seven hundred seventy million, eight hundred eighty thousand, seven hundred seventy-nine".