897118427178 has 40 divisors (see below), whose sum is σ = 2014337727072. Its totient is φ = 298425405384.

The previous prime is 897118427129. The next prime is 897118427263. The reversal of 897118427178 is 871724811798.

897118427178 is a `hidden beast` number, since 8 + 97 + 118 + 427 + 1 + 7 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5606700 + ... + 5764487.

Almost surely, 2^897118427178 is an apocalyptic number.

897118427178 is an abundant number, since it is smaller than the sum of its proper divisors (1117219299894).

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

897118427178 is a wasteful number, since it uses less digits than its factorization.

897118427178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11371688 (or 11371679 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 63.

The spelling of 897118427178 in words is "eight hundred ninety-seven billion, one hundred eighteen million, four hundred twenty-seven thousand, one hundred seventy-eight".