897818212071 has 64 divisors (see below), whose sum is σ = 1568669913600. Its totient is φ = 501561331200.

The previous prime is 897818212021. The next prime is 897818212073. The reversal of 897818212071 is 170212818798.

It is not a de Polignac number, because 897818212071 - 2⁹ = 897818211559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 897818211999 and 897818212017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897818212073) 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 in 63 ways as a sum of consecutive naturals, for example, 1941250 + ... + 2358831.

It is an arithmetic number, because the mean of its divisors is an integer number (24510467400).

Almost surely, 2^897818212071 is an apocalyptic number.

897818212071 is a deficient number, since it is larger than the sum of its proper divisors (670851701529).

897818212071 is a wasteful number, since it uses less digits than its factorization.

897818212071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300157 (or 4300151 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 54.

The spelling of 897818212071 in words is "eight hundred ninety-seven billion, eight hundred eighteen million, two hundred twelve thousand, seventy-one".