472428745220417 has 2 divisors, whose sum is σ = 472428745220418. Its totient is φ = 472428745220416.

The previous prime is 472428745220413. The next prime is 472428745220441. The reversal of 472428745220417 is 714022547824274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428152283969281 + 44276461251136 = 20691841^2 + 6654056^2 .

It is a cyclic number.

It is not a de Polignac number, because 472428745220417 - 2² = 472428745220413 is a prime.

It is not a weakly prime, because it can be changed into another prime (472428745220413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236214372610208 + 236214372610209.

It is an arithmetic number, because the mean of its divisors is an integer number (236214372610209).

Almost surely, 2^{472428745220417} is an apocalyptic number.

It is an amenable number.

472428745220417 is a deficient number, since it is larger than the sum of its proper divisors (1).

472428745220417 is an equidigital number, since it uses as much as digits as its factorization.

472428745220417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56197120, while the sum is 59.

The spelling of 472428745220417 in words is "four hundred seventy-two trillion, four hundred twenty-eight billion, seven hundred forty-five million, two hundred twenty thousand, four hundred seventeen".