22894557809 has 8 divisors (see below), whose sum is σ = 23456939688. Its totient is φ = 22332365440.

The previous prime is 22894557799. The next prime is 22894557853. The reversal of 22894557809 is 90875549822.

It can be written as a sum of positive squares in 4 ways, for example, as 1960000 + 22892597809 = 1400^2 + 151303^2 .

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-22894557809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22894557859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214799 + ... + 303195.

It is an arithmetic number, because the mean of its divisors is an integer number (2932117461).

Almost surely, 2^22894557809 is an apocalyptic number.

It is an amenable number.

22894557809 is a deficient number, since it is larger than the sum of its proper divisors (562381879).

22894557809 is an equidigital number, since it uses as much as digits as its factorization.

22894557809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94755.

The product of its (nonzero) digits is 14515200, while the sum is 59.

The spelling of 22894557809 in words is "twenty-two billion, eight hundred ninety-four million, five hundred fifty-seven thousand, eight hundred nine".