9135778242 has 8 divisors (see below), whose sum is σ = 18271556496. Its totient is φ = 3045259412.

The previous prime is 9135778229. The next prime is 9135778259. The reversal of 9135778242 is 2428775319.

It is a happy number.

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

9135778242 is an admirable number.

It is a super-2 number, since 2×9135778242² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9135778191 and 9135778200.

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, 761314848 + ... + 761314859.

It is an arithmetic number, because the mean of its divisors is an integer number (2283944562).

Almost surely, 2^9135778242 is an apocalyptic number.

9135778242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9135778242 is a wasteful number, since it uses less digits than its factorization.

9135778242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522629712.

The product of its digits is 846720, while the sum is 48.

The square root of 9135778242 is about 95581.2651203153. The cubic root of 9135778242 is about 2090.4920311613.

The spelling of 9135778242 in words is "nine billion, one hundred thirty-five million, seven hundred seventy-eight thousand, two hundred forty-two".