9992278078 has 8 divisors (see below), whose sum is σ = 14993138520. Its totient is φ = 4994565240.

The previous prime is 9992278069. The next prime is 9992278099. The reversal of 9992278078 is 8708722999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 778948 + ... + 791671.

It is an arithmetic number, because the mean of its divisors is an integer number (1874142315).

Almost surely, 2^9992278078 is an apocalyptic number.

9992278078 is a deficient number, since it is larger than the sum of its proper divisors (5000860442).

9992278078 is a wasteful number, since it uses less digits than its factorization.

9992278078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573802.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The square root of 9992278078 is about 99961.3829336109. The cubic root of 9992278078 is about 2153.8800013443.

The spelling of 9992278078 in words is "nine billion, nine hundred ninety-two million, two hundred seventy-eight thousand, seventy-eight".