461340472309 has 2 divisors, whose sum is σ = 461340472310. Its totient is φ = 461340472308.

The previous prime is 461340472283. The next prime is 461340472381. The reversal of 461340472309 is 903274043164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458125922500 + 3214549809 = 676850^2 + 56697^2 .

It is a cyclic number.

It is not a de Polignac number, because 461340472309 - 2¹⁷ = 461340341237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461340470309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230670236154 + 230670236155.

It is an arithmetic number, because the mean of its divisors is an integer number (230670236155).

Almost surely, 2^461340472309 is an apocalyptic number.

It is an amenable number.

461340472309 is a deficient number, since it is larger than the sum of its proper divisors (1).

461340472309 is an equidigital number, since it uses as much as digits as its factorization.

461340472309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 461340472309 in words is "four hundred sixty-one billion, three hundred forty million, four hundred seventy-two thousand, three hundred nine".