858519909340 has 48 divisors (see below), whose sum is σ = 1883604663360. Its totient is φ = 328071011840.

The previous prime is 858519909311. The next prime is 858519909361. The reversal of 858519909340 is 43909915858.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781351 + ... + 1525630.

It is an arithmetic number, because the mean of its divisors is an integer number (39241763820).

Almost surely, 2^858519909340 is an apocalyptic number.

It is an amenable number.

858519909340 is an abundant number, since it is smaller than the sum of its proper divisors (1025084754020).

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

858519909340 is a wasteful number, since it uses less digits than its factorization.

858519909340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307822 (or 2307820 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 858519909340 in words is "eight hundred fifty-eight billion, five hundred nineteen million, nine hundred nine thousand, three hundred forty".