477212745917 has 2 divisors, whose sum is σ = 477212745918. Its totient is φ = 477212745916.

The previous prime is 477212745859. The next prime is 477212745929. The reversal of 477212745917 is 719547212774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430308448441 + 46904297476 = 655979^2 + 216574^2 .

It is a cyclic number.

It is not a de Polignac number, because 477212745917 - 2⁸ = 477212745661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477212745937) 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 as a sum of consecutive naturals, namely, 238606372958 + 238606372959.

It is an arithmetic number, because the mean of its divisors is an integer number (238606372959).

Almost surely, 2^477212745917 is an apocalyptic number.

It is an amenable number.

477212745917 is a deficient number, since it is larger than the sum of its proper divisors (1).

477212745917 is an equidigital number, since it uses as much as digits as its factorization.

477212745917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6914880, while the sum is 56.

The spelling of 477212745917 in words is "four hundred seventy-seven billion, two hundred twelve million, seven hundred forty-five thousand, nine hundred seventeen".