858234917672 has 32 divisors (see below), whose sum is σ = 1755547253280. Its totient is φ = 390091949760.

The previous prime is 858234917663. The next prime is 858234917711. The reversal of 858234917672 is 276719432858.

It is a super-2 number, since 2×858234917672² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2336243 + ... + 2678525.

It is an arithmetic number, because the mean of its divisors is an integer number (54860851665).

Almost surely, 2^858234917672 is an apocalyptic number.

It is an amenable number.

858234917672 is an abundant number, since it is smaller than the sum of its proper divisors (897312335608).

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

858234917672 is a wasteful number, since it uses less digits than its factorization.

858234917672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370793 (or 370789 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 62.

The spelling of 858234917672 in words is "eight hundred fifty-eight billion, two hundred thirty-four million, nine hundred seventeen thousand, six hundred seventy-two".