460721247689 has 2 divisors, whose sum is σ = 460721247690. Its totient is φ = 460721247688.

The previous prime is 460721247677. The next prime is 460721247709. The reversal of 460721247689 is 986742127064.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240680510464 + 220040737225 = 490592^2 + 469085^2 .

It is a cyclic number.

It is not a de Polignac number, because 460721247689 - 2⁴ = 460721247673 is a prime.

It is not a weakly prime, because it can be changed into another prime (460721247619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230360623844 + 230360623845.

It is an arithmetic number, because the mean of its divisors is an integer number (230360623845).

Almost surely, 2^460721247689 is an apocalyptic number.

It is an amenable number.

460721247689 is a deficient number, since it is larger than the sum of its proper divisors (1).

460721247689 is an equidigital number, since it uses as much as digits as its factorization.

460721247689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 460721247689 in words is "four hundred sixty billion, seven hundred twenty-one million, two hundred forty-seven thousand, six hundred eighty-nine".