465521208881 has 2 divisors, whose sum is σ = 465521208882. Its totient is φ = 465521208880.

The previous prime is 465521208871. The next prime is 465521208913. The reversal of 465521208881 is 188802125564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317634815281 + 147886393600 = 563591^2 + 384560^2 .

It is a cyclic number.

It is not a de Polignac number, because 465521208881 - 2¹⁴ = 465521192497 is a prime.

It is a super-2 number, since 2×465521208881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (465521208851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232760604440 + 232760604441.

It is an arithmetic number, because the mean of its divisors is an integer number (232760604441).

Almost surely, 2^465521208881 is an apocalyptic number.

It is an amenable number.

465521208881 is a deficient number, since it is larger than the sum of its proper divisors (1).

465521208881 is an equidigital number, since it uses as much as digits as its factorization.

465521208881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1228800, while the sum is 50.

The spelling of 465521208881 in words is "four hundred sixty-five billion, five hundred twenty-one million, two hundred eight thousand, eight hundred eighty-one".