22746490817857 has 2 divisors, whose sum is σ = 22746490817858. Its totient is φ = 22746490817856.

The previous prime is 22746490817849. The next prime is 22746490817873. The reversal of 22746490817857 is 75871809464722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11989986574336 + 10756504243521 = 3462656^2 + 3279711^2 .

It is a cyclic number.

It is not a de Polignac number, because 22746490817857 - 2³ = 22746490817849 is a prime.

It is not a weakly prime, because it can be changed into another prime (22746490617857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11373245408928 + 11373245408929.

It is an arithmetic number, because the mean of its divisors is an integer number (11373245408929).

Almost surely, 2^{22746490817857} is an apocalyptic number.

It is an amenable number.

22746490817857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22746490817857 is an equidigital number, since it uses as much as digits as its factorization.

22746490817857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 379330560, while the sum is 70.

The spelling of 22746490817857 in words is "twenty-two trillion, seven hundred forty-six billion, four hundred ninety million, eight hundred seventeen thousand, eight hundred fifty-seven".