4805805318961 has 6 divisors (see below), whose sum is σ = 4965832135986. Its totient is φ = 4650779340000.

The previous prime is 4805805318913. The next prime is 4805805318971. The reversal of 4805805318961 is 1698135085084.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4501356289600 + 304449029361 = 2121640^2 + 551769^2 .

It is not a de Polignac number, because 4805805318961 - 2²³ = 4805796930353 is a prime.

It is a super-2 number, since 2×4805805318961² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4805805318896 and 4805805318905.

It is not an unprimeable number, because it can be changed into a prime (4805805318971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2500418040 + ... + 2500419961.

It is an arithmetic number, because the mean of its divisors is an integer number (827638689331).

Almost surely, 2^{4805805318961} is an apocalyptic number.

It is an amenable number.

4805805318961 is a deficient number, since it is larger than the sum of its proper divisors (160026817025).

4805805318961 is an equidigital number, since it uses as much as digits as its factorization.

4805805318961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000838063 (or 5000838032 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 58.

The spelling of 4805805318961 in words is "four trillion, eight hundred five billion, eight hundred five million, three hundred eighteen thousand, nine hundred sixty-one".