4809313081 has 4 divisors (see below), whose sum is σ = 4841590500. Its totient is φ = 4777035664.

The previous prime is 4809313063. The next prime is 4809313097. The reversal of 4809313081 is 1803139084.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1581255225 + 3228057856 = 39765^2 + 56816^2 .

It is a cyclic number.

It is not a de Polignac number, because 4809313081 - 2¹³ = 4809304889 is a prime.

It is a super-3 number, since 3×4809313081³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4809313081.

It is not an unprimeable number, because it can be changed into a prime (4809313031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16138486 + ... + 16138783.

It is an arithmetic number, because the mean of its divisors is an integer number (1210397625).

Almost surely, 2^4809313081 is an apocalyptic number.

It is an amenable number.

4809313081 is a deficient number, since it is larger than the sum of its proper divisors (32277419).

4809313081 is a wasteful number, since it uses less digits than its factorization.

4809313081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32277418.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 4809313081 is about 69349.2111058230. The cubic root of 4809313081 is about 1687.9555920022.

The spelling of 4809313081 in words is "four billion, eight hundred nine million, three hundred thirteen thousand, eighty-one".