457073209561 has 2 divisors, whose sum is σ = 457073209562. Its totient is φ = 457073209560.

The previous prime is 457073209487. The next prime is 457073209639. The reversal of 457073209561 is 165902370754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298066862025 + 159006347536 = 545955^2 + 398756^2 .

It is a cyclic number.

It is not a de Polignac number, because 457073209561 - 2¹⁵ = 457073176793 is a prime.

It is not a weakly prime, because it can be changed into another prime (457073209361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228536604780 + 228536604781.

It is an arithmetic number, because the mean of its divisors is an integer number (228536604781).

Almost surely, 2^457073209561 is an apocalyptic number.

It is an amenable number.

457073209561 is a deficient number, since it is larger than the sum of its proper divisors (1).

457073209561 is an equidigital number, since it uses as much as digits as its factorization.

457073209561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 457073209561 in words is "four hundred fifty-seven billion, seventy-three million, two hundred nine thousand, five hundred sixty-one".