897570549571 has 2 divisors, whose sum is σ = 897570549572. Its totient is φ = 897570549570.

The previous prime is 897570549539. The next prime is 897570549641. The reversal of 897570549571 is 175945075798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897570549571 - 2⁵ = 897570549539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 897570549497 and 897570549506.

It is not a weakly prime, because it can be changed into another prime (897571549571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448785274785 + 448785274786.

It is an arithmetic number, because the mean of its divisors is an integer number (448785274786).

Almost surely, 2^897570549571 is an apocalyptic number.

897570549571 is a deficient number, since it is larger than the sum of its proper divisors (1).

897570549571 is an equidigital number, since it uses as much as digits as its factorization.

897570549571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132000, while the sum is 67.

The spelling of 897570549571 in words is "eight hundred ninety-seven billion, five hundred seventy million, five hundred forty-nine thousand, five hundred seventy-one".