851889013272 has 384 divisors, whose sum is σ = 2645068608000. Its totient is φ = 254721024000.

The previous prime is 851889013253. The next prime is 851889013289. The reversal of 851889013272 is 272310988158.

851889013272 is a `hidden beast` number, since 8 + 518 + 8 + 90 + 1 + 32 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 532097272 + ... + 532098872.

It is an arithmetic number, because the mean of its divisors is an integer number (6888199500).

Almost surely, 2^851889013272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 851889013272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322534304000).

851889013272 is an abundant number, since it is smaller than the sum of its proper divisors (1793179594728).

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

851889013272 is a wasteful number, since it uses less digits than its factorization.

851889013272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1933 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 851889013272 in words is "eight hundred fifty-one billion, eight hundred eighty-nine million, thirteen thousand, two hundred seventy-two".