9427942786 has 8 divisors (see below), whose sum is σ = 14267064204. Its totient is φ = 4672254720.

The previous prime is 9427942781. The next prime is 9427942793. The reversal of 9427942786 is 6872497249.

It can be written as a sum of positive squares in 2 ways, for example, as 6696312561 + 2731630225 = 81831^2 + 52265^2 .

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

It is a super-2 number, since 2×9427942786² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9427942786.

It is not an unprimeable number, because it can be changed into a prime (9427942781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20858055 + ... + 20858506.

Almost surely, 2^9427942786 is an apocalyptic number.

9427942786 is a deficient number, since it is larger than the sum of its proper divisors (4839121418).

9427942786 is a wasteful number, since it uses less digits than its factorization.

9427942786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41716676.

The product of its digits is 12192768, while the sum is 58.

The square root of 9427942786 is about 97097.5941308537. The cubic root of 9427942786 is about 2112.5434304809.

The spelling of 9427942786 in words is "nine billion, four hundred twenty-seven million, nine hundred forty-two thousand, seven hundred eighty-six".