897665877600 has 144 divisors (see below), whose sum is σ = 3048941855232. Its totient is φ = 228969832960.

The previous prime is 897665877587. The next prime is 897665877607. The reversal of 897665877600 is 6778566798.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897665877607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8075832 + ... + 8186231.

It is an arithmetic number, because the mean of its divisors is an integer number (21173207328).

Almost surely, 2^897665877600 is an apocalyptic number.

897665877600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

897665877600 is an abundant number, since it is smaller than the sum of its proper divisors (2151275977632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897665877600 is a wasteful number, since it uses less digits than its factorization.

897665877600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16262109 (or 16262096 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 69.

The spelling of 897665877600 in words is "eight hundred ninety-seven billion, six hundred sixty-five million, eight hundred seventy-seven thousand, six hundred".