22920885857 has 8 divisors (see below), whose sum is σ = 22951809000. Its totient is φ = 22889985664.

The previous prime is 22920885853. The next prime is 22920885859. The reversal of 22920885857 is 75858802922.

It can be written as a sum of positive squares in 4 ways, for example, as 9692205601 + 13228680256 = 98449^2 + 115016^2 .

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 22920885857 - 2² = 22920885853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22920885853) 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, 2879519 + ... + 2887467.

It is an arithmetic number, because the mean of its divisors is an integer number (2868976125).

Almost surely, 2^22920885857 is an apocalyptic number.

It is an amenable number.

22920885857 is a deficient number, since it is larger than the sum of its proper divisors (30923143).

22920885857 is a wasteful number, since it uses less digits than its factorization.

22920885857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 22920885857 in words is "twenty-two billion, nine hundred twenty million, eight hundred eighty-five thousand, eight hundred fifty-seven".