9942815384 has 16 divisors (see below), whose sum is σ = 18654806520. Its totient is φ = 4968200320.

The previous prime is 9942815369. The next prime is 9942815453. The reversal of 9942815384 is 4835182499.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387722 + ... + 412569.

Almost surely, 2^9942815384 is an apocalyptic number.

It is an amenable number.

9942815384 is a deficient number, since it is larger than the sum of its proper divisors (8711991136).

9942815384 is a wasteful number, since it uses less digits than its factorization.

9942815384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801850 (or 801846 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The square root of 9942815384 is about 99713.6669870284. Note that the first 3 decimals coincide. The cubic root of 9942815384 is about 2150.3201530813.

The spelling of 9942815384 in words is "nine billion, nine hundred forty-two million, eight hundred fifteen thousand, three hundred eighty-four".