858860900352 has 520 divisors, whose sum is σ = 3157854081536. Its totient is φ = 226504802304.

The previous prime is 858860900311. The next prime is 858860900383. The reversal of 858860900352 is 253009068858.

858860900352 is a `hidden beast` number, since 8 + 588 + 6 + 0 + 9 + 0 + 0 + 3 + 52 = 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 39 ways as a sum of consecutive naturals, for example, 30177393 + ... + 30205839.

Almost surely, 2^858860900352 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 858860900352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578927040768).

858860900352 is an abundant number, since it is smaller than the sum of its proper divisors (2298993181184).

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

858860900352 is a wasteful number, since it uses less digits than its factorization.

858860900352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28503 (or 28472 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 858860900352 in words is "eight hundred fifty-eight billion, eight hundred sixty million, nine hundred thousand, three hundred fifty-two".