458026728721 has 2 divisors, whose sum is σ = 458026728722. Its totient is φ = 458026728720.

The previous prime is 458026728713. The next prime is 458026728763. The reversal of 458026728721 is 127827620854.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251892568321 + 206134160400 = 501889^2 + 454020^2 .

It is a cyclic number.

It is not a de Polignac number, because 458026728721 - 2³ = 458026728713 is a prime.

It is not a weakly prime, because it can be changed into another prime (458026728791) 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, 229013364360 + 229013364361.

It is an arithmetic number, because the mean of its divisors is an integer number (229013364361).

Almost surely, 2^458026728721 is an apocalyptic number.

It is an amenable number.

458026728721 is a deficient number, since it is larger than the sum of its proper divisors (1).

458026728721 is an equidigital number, since it uses as much as digits as its factorization.

458026728721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 458026728721 in words is "four hundred fifty-eight billion, twenty-six million, seven hundred twenty-eight thousand, seven hundred twenty-one".