897805866950 has 24 divisors (see below), whose sum is σ = 1670487378840. Its totient is φ = 359000096000.

The previous prime is 897805866943. The next prime is 897805867001. The reversal of 897805866950 is 59668508798.

It is a super-2 number, since 2×897805866950² (a number of 25 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 2907851 + ... + 3201750.

It is an arithmetic number, because the mean of its divisors is an integer number (69603640785).

Almost surely, 2^897805866950 is an apocalyptic number.

897805866950 is a deficient number, since it is larger than the sum of its proper divisors (772681511890).

897805866950 is a wasteful number, since it uses less digits than its factorization.

897805866950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112552 (or 6112547 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 71.

The spelling of 897805866950 in words is "eight hundred ninety-seven billion, eight hundred five million, eight hundred sixty-six thousand, nine hundred fifty".