873564410897 has 2 divisors, whose sum is σ = 873564410898. Its totient is φ = 873564410896.

The previous prime is 873564410861. The next prime is 873564410941. The reversal of 873564410897 is 798014465378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846812210176 + 26752200721 = 920224^2 + 163561^2 .

It is a cyclic number.

It is not a de Polignac number, because 873564410897 - 2⁶ = 873564410833 is a prime.

It is a super-2 number, since 2×873564410897² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (873564410197) 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, 436782205448 + 436782205449.

It is an arithmetic number, because the mean of its divisors is an integer number (436782205449).

Almost surely, 2^873564410897 is an apocalyptic number.

It is an amenable number.

873564410897 is a deficient number, since it is larger than the sum of its proper divisors (1).

873564410897 is an equidigital number, since it uses as much as digits as its factorization.

873564410897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 873564410897 in words is "eight hundred seventy-three billion, five hundred sixty-four million, four hundred ten thousand, eight hundred ninety-seven".