5811572461 has 2 divisors, whose sum is σ = 5811572462. Its totient is φ = 5811572460.

The previous prime is 5811572447. The next prime is 5811572489. The reversal of 5811572461 is 1642751185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5491699236 + 319873225 = 74106^2 + 17885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5811572461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5811572411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2905786230 + 2905786231.

It is an arithmetic number, because the mean of its divisors is an integer number (2905786231).

Almost surely, 2^5811572461 is an apocalyptic number.

It is an amenable number.

5811572461 is a deficient number, since it is larger than the sum of its proper divisors (1).

5811572461 is an equidigital number, since it uses as much as digits as its factorization.

5811572461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 40.

The square root of 5811572461 is about 76233.6701267885. The cubic root of 5811572461 is about 1797.8959428199.

The spelling of 5811572461 in words is "five billion, eight hundred eleven million, five hundred seventy-two thousand, four hundred sixty-one".