464645632431209 has 2 divisors, whose sum is σ = 464645632431210. Its totient is φ = 464645632431208.

The previous prime is 464645632431173. The next prime is 464645632431221. The reversal of 464645632431209 is 902134236546464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435917608249600 + 28728024181609 = 20878640^2 + 5359853^2 .

It is a cyclic number.

It is not a de Polignac number, because 464645632431209 - 2¹² = 464645632427113 is a prime.

It is not a weakly prime, because it can be changed into another prime (464645632431259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232322816215604 + 232322816215605.

It is an arithmetic number, because the mean of its divisors is an integer number (232322816215605).

Almost surely, 2^{464645632431209} is an apocalyptic number.

It is an amenable number.

464645632431209 is a deficient number, since it is larger than the sum of its proper divisors (1).

464645632431209 is an equidigital number, since it uses as much as digits as its factorization.

464645632431209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 59.

The spelling of 464645632431209 in words is "four hundred sixty-four trillion, six hundred forty-five billion, six hundred thirty-two million, four hundred thirty-one thousand, two hundred nine".