9089742845 has 8 divisors (see below), whose sum is σ = 11173732920. Its totient is φ = 7094433280.

The previous prime is 9089742839. The next prime is 9089742847. The reversal of 9089742845 is 5482479809.

It can be written as a sum of positive squares in 4 ways, for example, as 1071973081 + 8017769764 = 32741^2 + 89542^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-9089742845 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9089742847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22169900 + ... + 22170309.

It is an arithmetic number, because the mean of its divisors is an integer number (1396716615).

Almost surely, 2^9089742845 is an apocalyptic number.

It is an amenable number.

9089742845 is a deficient number, since it is larger than the sum of its proper divisors (2083990075).

9089742845 is a wasteful number, since it uses less digits than its factorization.

9089742845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44340255.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The square root of 9089742845 is about 95340.1428832577. The cubic root of 9089742845 is about 2086.9747708443.

The spelling of 9089742845 in words is "nine billion, eighty-nine million, seven hundred forty-two thousand, eight hundred forty-five".