897856285190 has 32 divisors (see below), whose sum is σ = 1632255951456. Its totient is φ = 355561977600.

The previous prime is 897856285189. The next prime is 897856285223. The reversal of 897856285190 is 91582658798.

It is a super-2 number, since 2×897856285190² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 897856285190.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 23173274 + ... + 23211986.

It is an arithmetic number, because the mean of its divisors is an integer number (51007998483).

Almost surely, 2^897856285190 is an apocalyptic number.

897856285190 is a deficient number, since it is larger than the sum of its proper divisors (734399666266).

897856285190 is a wasteful number, since it uses less digits than its factorization.

897856285190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61784.

The product of its (nonzero) digits is 87091200, while the sum is 68.

The spelling of 897856285190 in words is "eight hundred ninety-seven billion, eight hundred fifty-six million, two hundred eighty-five thousand, one hundred ninety".