456843431549 has 2 divisors, whose sum is σ = 456843431550. Its totient is φ = 456843431548.

The previous prime is 456843431543. The next prime is 456843431609. The reversal of 456843431549 is 945134348654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231835509049 + 225007922500 = 481493^2 + 474350^2 .

It is a cyclic number.

It is not a de Polignac number, because 456843431549 - 2¹⁶ = 456843366013 is a prime.

It is a super-3 number, since 3×456843431549³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 456843431494 and 456843431503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456843431543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228421715774 + 228421715775.

It is an arithmetic number, because the mean of its divisors is an integer number (228421715775).

Almost surely, 2^456843431549 is an apocalyptic number.

It is an amenable number.

456843431549 is a deficient number, since it is larger than the sum of its proper divisors (1).

456843431549 is an equidigital number, since it uses as much as digits as its factorization.

456843431549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24883200, while the sum is 56.

The spelling of 456843431549 in words is "four hundred fifty-six billion, eight hundred forty-three million, four hundred thirty-one thousand, five hundred forty-nine".