472743332077721 has 2 divisors, whose sum is σ = 472743332077722. Its totient is φ = 472743332077720.

The previous prime is 472743332077673. The next prime is 472743332077759. The reversal of 472743332077721 is 127770233347274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441708572394496 + 31034759683225 = 21016864^2 + 5570885^2 .

It is a cyclic number.

It is not a de Polignac number, because 472743332077721 - 2¹⁸ = 472743331815577 is a prime.

It is not a weakly prime, because it can be changed into another prime (472743332077421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236371666038860 + 236371666038861.

It is an arithmetic number, because the mean of its divisors is an integer number (236371666038861).

Almost surely, 2^{472743332077721} is an apocalyptic number.

It is an amenable number.

472743332077721 is a deficient number, since it is larger than the sum of its proper divisors (1).

472743332077721 is an equidigital number, since it uses as much as digits as its factorization.

472743332077721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58084992, while the sum is 59.

The spelling of 472743332077721 in words is "four hundred seventy-two trillion, seven hundred forty-three billion, three hundred thirty-two million, seventy-seven thousand, seven hundred twenty-one".