9121744577 has 8 divisors (see below), whose sum is σ = 9952626432. Its totient is φ = 8291134800.

The previous prime is 9121744573. The next prime is 9121744601. The reversal of 9121744577 is 7754471219.

It is a happy number.

9121744577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9121744577 - 2² = 9121744573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9121744573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5552 + ... + 135182.

It is an arithmetic number, because the mean of its divisors is an integer number (1244078304).

Almost surely, 2^9121744577 is an apocalyptic number.

It is an amenable number.

9121744577 is a deficient number, since it is larger than the sum of its proper divisors (830881855).

9121744577 is a wasteful number, since it uses less digits than its factorization.

9121744577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136039.

The product of its digits is 493920, while the sum is 47.

The square root of 9121744577 is about 95507.8246899174. The cubic root of 9121744577 is about 2089.4210660403.

The spelling of 9121744577 in words is "nine billion, one hundred twenty-one million, seven hundred forty-four thousand, five hundred seventy-seven".