851874368568 has 16 divisors (see below), whose sum is σ = 2129685921480. Its totient is φ = 283958122848.

The previous prime is 851874368551. The next prime is 851874368581. The reversal of 851874368568 is 865863478158.

851874368568 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17747382655 + ... + 17747382702.

Almost surely, 2^851874368568 is an apocalyptic number.

It is an amenable number.

851874368568 is an abundant number, since it is smaller than the sum of its proper divisors (1277811552912).

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

851874368568 is a wasteful number, since it uses less digits than its factorization.

851874368568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35494765366 (or 35494765362 counting only the distinct ones).

The product of its digits is 309657600, while the sum is 69.

The spelling of 851874368568 in words is "eight hundred fifty-one billion, eight hundred seventy-four million, three hundred sixty-eight thousand, five hundred sixty-eight".