472811435746921 has 2 divisors, whose sum is σ = 472811435746922. Its totient is φ = 472811435746920.

The previous prime is 472811435746849. The next prime is 472811435747009. The reversal of 472811435746921 is 129647534118274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 453429112515625 + 19382323231296 = 21293875^2 + 4402536^2 .

It is a cyclic number.

It is not a de Polignac number, because 472811435746921 - 2¹¹ = 472811435744873 is a prime.

It is not a weakly prime, because it can be changed into another prime (472811435446921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236405717873460 + 236405717873461.

It is an arithmetic number, because the mean of its divisors is an integer number (236405717873461).

Almost surely, 2^{472811435746921} is an apocalyptic number.

It is an amenable number.

472811435746921 is a deficient number, since it is larger than the sum of its proper divisors (1).

472811435746921 is an equidigital number, since it uses as much as digits as its factorization.

472811435746921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81285120, while the sum is 64.

The spelling of 472811435746921 in words is "four hundred seventy-two trillion, eight hundred eleven billion, four hundred thirty-five million, seven hundred forty-six thousand, nine hundred twenty-one".