858818012 has 24 divisors (see below), whose sum is σ = 1703730000. Its totient is φ = 375515136.

The previous prime is 858818011. The next prime is 858818029. The reversal of 858818012 is 210818858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858818011) 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, 433637 + ... + 435612.

It is an arithmetic number, because the mean of its divisors is an integer number (70988750).

Almost surely, 2^858818012 is an apocalyptic number.

It is an amenable number.

858818012 is a deficient number, since it is larger than the sum of its proper divisors (844911988).

858818012 is a wasteful number, since it uses less digits than its factorization.

858818012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869285 (or 869283 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 41.

The square root of 858818012 is about 29305.5969398339. The cubic root of 858818012 is about 950.5326696947.

The spelling of 858818012 in words is "eight hundred fifty-eight million, eight hundred eighteen thousand, twelve".