5815291481 has 2 divisors, whose sum is σ = 5815291482. Its totient is φ = 5815291480.

The previous prime is 5815291477. The next prime is 5815291511. The reversal of 5815291481 is 1841925185.

5815291481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3307285081 + 2508006400 = 57509^2 + 50080^2 .

It is a cyclic number.

It is not a de Polignac number, because 5815291481 - 2² = 5815291477 is a prime.

It is a super-2 number, since 2×5815291481² = 67635230017982346722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5815291421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2907645740 + 2907645741.

It is an arithmetic number, because the mean of its divisors is an integer number (2907645741).

Almost surely, 2^5815291481 is an apocalyptic number.

It is an amenable number.

5815291481 is a deficient number, since it is larger than the sum of its proper divisors (1).

5815291481 is an equidigital number, since it uses as much as digits as its factorization.

5815291481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 44.

The square root of 5815291481 is about 76258.0584659746. The cubic root of 5815291481 is about 1798.2793723325.

The spelling of 5815291481 in words is "five billion, eight hundred fifteen million, two hundred ninety-one thousand, four hundred eighty-one".