9975778382 has 16 divisors (see below), whose sum is σ = 15537225600. Its totient is φ = 4797982560.

The previous prime is 9975778367. The next prime is 9975778399. The reversal of 9975778382 is 2838775799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304094 + ... + 335297.

It is an arithmetic number, because the mean of its divisors is an integer number (971076600).

Almost surely, 2^9975778382 is an apocalyptic number.

9975778382 is a deficient number, since it is larger than the sum of its proper divisors (5561447218).

9975778382 is a wasteful number, since it uses less digits than its factorization.

9975778382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639691.

The product of its digits is 53343360, while the sum is 65.

The square root of 9975778382 is about 99878.8184852024. The cubic root of 9975778382 is about 2152.6938205830.

The spelling of 9975778382 in words is "nine billion, nine hundred seventy-five million, seven hundred seventy-eight thousand, three hundred eighty-two".