859928370840 has 1344 divisors, whose sum is σ = 3746612681280. Its totient is φ = 173672294400.

The previous prime is 859928370839. The next prime is 859928370871. The reversal of 859928370840 is 48073829958.

859928370840 is a `hidden beast` number, since 8 + 599 + 2 + 8 + 37 + 0 + 8 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 913844770 + ... + 913845710.

It is an arithmetic number, because the mean of its divisors is an integer number (2787658245).

Almost surely, 2^859928370840 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 859928370840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1873306340640).

859928370840 is an abundant number, since it is smaller than the sum of its proper divisors (2886684310440).

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

859928370840 is a wasteful number, since it uses less digits than its factorization.

859928370840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 859928370840 in words is "eight hundred fifty-nine billion, nine hundred twenty-eight million, three hundred seventy thousand, eight hundred forty".