875345484543581 has 2 divisors, whose sum is σ = 875345484543582. Its totient is φ = 875345484543580.

The previous prime is 875345484543559. The next prime is 875345484543631. The reversal of 875345484543581 is 185345484543578.

875345484543581 is digitally balanced in base 2, 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., 818127833408356 + 57217651135225 = 28602934^2 + 7564235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-875345484543581 is a prime.

It is a super-2 number, since 2×875345484543581² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 875345484543499 and 875345484543508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (875345484543181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437672742271790 + 437672742271791.

It is an arithmetic number, because the mean of its divisors is an integer number (437672742271791).

Almost surely, 2^{875345484543581} is an apocalyptic number.

It is an amenable number.

875345484543581 is a deficient number, since it is larger than the sum of its proper divisors (1).

875345484543581 is an equidigital number, since it uses as much as digits as its factorization.

875345484543581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960000, while the sum is 74.

The spelling of 875345484543581 in words is "eight hundred seventy-five trillion, three hundred forty-five billion, four hundred eighty-four million, five hundred forty-three thousand, five hundred eighty-one".