97565894406 has 48 divisors (see below), whose sum is σ = 222576822000. Its totient is φ = 30802235904.

The previous prime is 97565894399. The next prime is 97565894429. The reversal of 97565894406 is 60449856579.

97565894406 is a `hidden beast` number, since 9 + 7 + 5 + 6 + 589 + 4 + 40 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1349530 + ... + 1419986.

It is an arithmetic number, because the mean of its divisors is an integer number (4637017125).

Almost surely, 2^97565894406 is an apocalyptic number.

97565894406 is an abundant number, since it is smaller than the sum of its proper divisors (125010927594).

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

97565894406 is a wasteful number, since it uses less digits than its factorization.

97565894406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74533 (or 74530 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 97565894406 in words is "ninety-seven billion, five hundred sixty-five million, eight hundred ninety-four thousand, four hundred six".