9778997295 has 64 divisors (see below), whose sum is σ = 18455610240. Its totient is φ = 4895852544.

The previous prime is 9778997233. The next prime is 9778997321. The reversal of 9778997295 is 5927998779.

9778997295 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9778997295 - 2⁷ = 9778997167 is a prime.

It is a super-3 number, since 3×9778997295³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 905749 + ... + 916481.

It is an arithmetic number, because the mean of its divisors is an integer number (288368910).

Almost surely, 2^9778997295 is an apocalyptic number.

9778997295 is a deficient number, since it is larger than the sum of its proper divisors (8676612945).

9778997295 is a wasteful number, since it uses less digits than its factorization.

9778997295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11161 (or 11155 counting only the distinct ones).

The product of its digits is 180033840, while the sum is 72.

The square root of 9778997295 is about 98888.8127899208. The cubic root of 9778997295 is about 2138.4451172868.

The spelling of 9778997295 in words is "nine billion, seven hundred seventy-eight million, nine hundred ninety-seven thousand, two hundred ninety-five".