9912073838 has 8 divisors (see below), whose sum is σ = 14871460032. Its totient is φ = 4954920496.

The previous prime is 9912073811. The next prime is 9912073841. The reversal of 9912073838 is 8383702199.

It is a happy number.

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, 547070 + ... + 564897.

It is an arithmetic number, because the mean of its divisors is an integer number (1858932504).

Almost surely, 2^9912073838 is an apocalyptic number.

9912073838 is a deficient number, since it is larger than the sum of its proper divisors (4959386194).

9912073838 is a wasteful number, since it uses less digits than its factorization.

9912073838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116426.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 9912073838 is about 99559.3985417751. The cubic root of 9912073838 is about 2148.1017200273.

The spelling of 9912073838 in words is "nine billion, nine hundred twelve million, seventy-three thousand, eight hundred thirty-eight".