9917126942 has 8 divisors (see below), whose sum is σ = 15079467216. Its totient is φ = 4890637872.

The previous prime is 9917126939. The next prime is 9917126971. The reversal of 9917126942 is 2496217199.

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, 33962618 + ... + 33962909.

It is an arithmetic number, because the mean of its divisors is an integer number (1884933402).

Almost surely, 2^9917126942 is an apocalyptic number.

9917126942 is a deficient number, since it is larger than the sum of its proper divisors (5162340274).

9917126942 is a wasteful number, since it uses less digits than its factorization.

9917126942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67925602.

The product of its digits is 489888, while the sum is 50.

The square root of 9917126942 is about 99584.7726412025. The cubic root of 9917126942 is about 2148.4666869544.

The spelling of 9917126942 in words is "nine billion, nine hundred seventeen million, one hundred twenty-six thousand, nine hundred forty-two".