859997465600 has 792 divisors, whose sum is σ = 2681124245280. Its totient is φ = 267756503040.

The previous prime is 859997465597. The next prime is 859997465659. The reversal of 859997465600 is 6564799958.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2210790206 + ... + 2210790594.

Almost surely, 2^859997465600 is an apocalyptic number.

859997465600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 859997465600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340562122640).

859997465600 is an abundant number, since it is smaller than the sum of its proper divisors (1821126779680).

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

859997465600 is a wasteful number, since it uses less digits than its factorization.

859997465600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 146966400, while the sum is 68.

The spelling of 859997465600 in words is "eight hundred fifty-nine billion, nine hundred ninety-seven million, four hundred sixty-five thousand, six hundred".