9992278988 has 12 divisors (see below), whose sum is σ = 17512322352. Its totient is φ = 4988758320.

The previous prime is 9992278979. The next prime is 9992279029. The reversal of 9992278988 is 8898722999.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842248 + ... + 1847663.

It is an arithmetic number, because the mean of its divisors is an integer number (1459360196).

Almost surely, 2^9992278988 is an apocalyptic number.

It is an amenable number.

9992278988 is a deficient number, since it is larger than the sum of its proper divisors (7520043364).

9992278988 is a wasteful number, since it uses less digits than its factorization.

9992278988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690592 (or 3690590 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 71.

The square root of 9992278988 is about 99961.3874853686. The cubic root of 9992278988 is about 2153.8800667291.

The spelling of 9992278988 in words is "nine billion, nine hundred ninety-two million, two hundred seventy-eight thousand, nine hundred eighty-eight".