485577775549 has 2 divisors, whose sum is σ = 485577775550. Its totient is φ = 485577775548.

The previous prime is 485577775489. The next prime is 485577775597. The reversal of 485577775549 is 945577775584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258692269924 + 226885505625 = 508618^2 + 476325^2 .

It is a cyclic number.

It is not a de Polignac number, because 485577775549 - 2¹⁵ = 485577742781 is a prime.

It is a super-2 number, since 2×485577775549² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485577775349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242788887774 + 242788887775.

It is an arithmetic number, because the mean of its divisors is an integer number (242788887775).

Almost surely, 2^485577775549 is an apocalyptic number.

It is an amenable number.

485577775549 is a deficient number, since it is larger than the sum of its proper divisors (1).

485577775549 is an equidigital number, since it uses as much as digits as its factorization.

485577775549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728720000, while the sum is 73.

The spelling of 485577775549 in words is "four hundred eighty-five billion, five hundred seventy-seven million, seven hundred seventy-five thousand, five hundred forty-nine".