859842851040 has 120 divisors (see below), whose sum is σ = 3034528774200. Its totient is φ = 229291423488.

The previous prime is 859842850987. The next prime is 859842851057. The reversal of 859842851040 is 40158248958.

859842851040 is a `hidden beast` number, since 8 + 5 + 9 + 84 + 2 + 8 + 510 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 19 ways as a sum of consecutive naturals, for example, 33159990 + ... + 33185909.

It is an arithmetic number, because the mean of its divisors is an integer number (25287739785).

Almost surely, 2^859842851040 is an apocalyptic number.

859842851040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

859842851040 is an abundant number, since it is smaller than the sum of its proper divisors (2174685923160).

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

859842851040 is a wasteful number, since it uses less digits than its factorization.

859842851040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66345926 (or 66345909 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

It can be divided in two parts, 8598428 and 51040, that added together give a palindrome (8649468).

The spelling of 859842851040 in words is "eight hundred fifty-nine billion, eight hundred forty-two million, eight hundred fifty-one thousand, forty".