897200018819 has 12 divisors (see below), whose sum is σ = 986024655576. Its totient is φ = 815823657792.

The previous prime is 897200018801. The next prime is 897200018867. The reversal of 897200018819 is 918810002798.

It is a happy number.

It is not a de Polignac number, because 897200018819 - 2³² = 892905051523 is a prime.

It is a super-2 number, since 2×897200018819² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897200011819) 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 11 ways as a sum of consecutive naturals, for example, 39607154 + ... + 39629799.

It is an arithmetic number, because the mean of its divisors is an integer number (82168721298).

Almost surely, 2^897200018819 is an apocalyptic number.

897200018819 is a deficient number, since it is larger than the sum of its proper divisors (88824636757).

897200018819 is a wasteful number, since it uses less digits than its factorization.

897200018819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79237046 (or 79237033 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 53.

The spelling of 897200018819 in words is "eight hundred ninety-seven billion, two hundred million, eighteen thousand, eight hundred nineteen".