9056723094721 has 9 divisors (see below), whose sum is σ = 9194120294499. Its totient is φ = 8921349500184.

The previous prime is 9056723094707. The next prime is 9056723094733. The reversal of 9056723094721 is 1274903276509.

The square root of 9056723094721 is 3009439.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1097350527025 + 7959372567696 = 1047545^2 + 2821236^2 .

It is not a de Polignac number, because 9056723094721 - 2²⁹ = 9056186223809 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9056723094781) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 201609955 + ... + 201654871.

It is an arithmetic number, because the mean of its divisors is an integer number (1021568921611).

Almost surely, 2^{9056723094721} is an apocalyptic number.

9056723094721 is the 3009439-th square number.

9056723094721 is the 1504720-th centered octagonal number.

It is an amenable number.

9056723094721 is a deficient number, since it is larger than the sum of its proper divisors (137397199778).

9056723094721 is an frugal number, since it uses more digits than its factorization.

9056723094721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89968 (or 44984 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 9056723094721 in words is "nine trillion, fifty-six billion, seven hundred twenty-three million, ninety-four thousand, seven hundred twenty-one".