858012900612 has 24 divisors (see below), whose sum is σ = 2288034401856. Its totient is φ = 245146543008.

The previous prime is 858012900599. The next prime is 858012900617. The reversal of 858012900612 is 216009210858.

It is a happy number.

858012900612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×858012900612² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (858012900617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5107219563 + ... + 5107219730.

It is an arithmetic number, because the mean of its divisors is an integer number (95334766744).

Almost surely, 2^858012900612 is an apocalyptic number.

It is an amenable number.

858012900612 is an abundant number, since it is smaller than the sum of its proper divisors (1430021501244).

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

858012900612 is a wasteful number, since it uses less digits than its factorization.

858012900612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10214439307 (or 10214439305 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 858012900612 in words is "eight hundred fifty-eight billion, twelve million, nine hundred thousand, six hundred twelve".