859078958940 has 192 divisors, whose sum is σ = 2740202680320. Its totient is φ = 223310430720.

The previous prime is 859078958921. The next prime is 859078958957. The reversal of 859078958940 is 49859870958.

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 63 ways as a sum of consecutive naturals, for example, 27061357 + ... + 27093083.

It is an arithmetic number, because the mean of its divisors is an integer number (14271888960).

Almost surely, 2^859078958940 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 859078958940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370101340160).

859078958940 is an abundant number, since it is smaller than the sum of its proper divisors (1881123721380).

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

859078958940 is a wasteful number, since it uses less digits than its factorization.

859078958940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33009 (or 33001 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 72.

The spelling of 859078958940 in words is "eight hundred fifty-nine billion, seventy-eight million, nine hundred fifty-eight thousand, nine hundred forty".