465156448835509 has 2 divisors, whose sum is σ = 465156448835510. Its totient is φ = 465156448835508.

The previous prime is 465156448835461. The next prime is 465156448835569. The reversal of 465156448835509 is 905538844651564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426619854229284 + 38536594606225 = 20654778^2 + 6207785^2 .

It is a cyclic number.

It is not a de Polignac number, because 465156448835509 - 2⁴³ = 456360355813301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465156448835569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232578224417754 + 232578224417755.

It is an arithmetic number, because the mean of its divisors is an integer number (232578224417755).

Almost surely, 2^{465156448835509} is an apocalyptic number.

It is an amenable number.

465156448835509 is a deficient number, since it is larger than the sum of its proper divisors (1).

465156448835509 is an equidigital number, since it uses as much as digits as its factorization.

465156448835509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320000, while the sum is 73.

The spelling of 465156448835509 in words is "four hundred sixty-five trillion, one hundred fifty-six billion, four hundred forty-eight million, eight hundred thirty-five thousand, five hundred nine".