9922745878 has 16 divisors (see below), whose sum is σ = 15761993040. Its totient is φ = 4668834816.

The previous prime is 9922745869. The next prime is 9922745897. The reversal of 9922745878 is 8785472299.

It is a super-3 number, since 3×9922745878³ (a number of 31 digits) contains 333 as substring.

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, 266533 + ... + 301471.

It is an arithmetic number, because the mean of its divisors is an integer number (985124565).

Almost surely, 2^9922745878 is an apocalyptic number.

9922745878 is a deficient number, since it is larger than the sum of its proper divisors (5839247162).

9922745878 is a wasteful number, since it uses less digits than its factorization.

9922745878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43311.

The product of its digits is 20321280, while the sum is 61.

The square root of 9922745878 is about 99612.9804694147. The cubic root of 9922745878 is about 2148.8723762777.

The spelling of 9922745878 in words is "nine billion, nine hundred twenty-two million, seven hundred forty-five thousand, eight hundred seventy-eight".