858187421932 has 12 divisors (see below), whose sum is σ = 1510125381856. Its totient is φ = 426723027120.

The previous prime is 858187421899. The next prime is 858187421953. The reversal of 858187421932 is 239124781858.

It is a super-2 number, since 2×858187421932² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592670148 + ... + 592671595.

Almost surely, 2^858187421932 is an apocalyptic number.

It is an amenable number.

858187421932 is a deficient number, since it is larger than the sum of its proper divisors (651937959924).

858187421932 is a wasteful number, since it uses less digits than its factorization.

858187421932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185341928 (or 1185341926 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The spelling of 858187421932 in words is "eight hundred fifty-eight billion, one hundred eighty-seven million, four hundred twenty-one thousand, nine hundred thirty-two".