473566656245861 has 2 divisors, whose sum is σ = 473566656245862. Its totient is φ = 473566656245860.

The previous prime is 473566656245731. The next prime is 473566656245899. The reversal of 473566656245861 is 168542656665374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 448305668632900 + 25260987612961 = 21173230^2 + 5026031^2 .

It is a cyclic number.

It is not a de Polignac number, because 473566656245861 - 2¹⁸ = 473566655983717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (473566656245461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236783328122930 + 236783328122931.

It is an arithmetic number, because the mean of its divisors is an integer number (236783328122931).

Almost surely, 2^{473566656245861} is an apocalyptic number.

It is an amenable number.

473566656245861 is a deficient number, since it is larger than the sum of its proper divisors (1).

473566656245861 is an equidigital number, since it uses as much as digits as its factorization.

473566656245861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472000, while the sum is 74.

The spelling of 473566656245861 in words is "four hundred seventy-three trillion, five hundred sixty-six billion, six hundred fifty-six million, two hundred forty-five thousand, eight hundred sixty-one".