855195894 has 80 divisors (see below), whose sum is σ = 2195424000. Its totient is φ = 243740016.

The previous prime is 855195893. The next prime is 855195907. The reversal of 855195894 is 498591558.

855195894 is a `hidden beast` number, since 8 + 5 + 51 + 9 + 589 + 4 = 666.

It is a super-2 number, since 2×855195894² = 1462720034228918472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 855195894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855195893) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 678637 + ... + 679895.

It is an arithmetic number, because the mean of its divisors is an integer number (27442800).

Almost surely, 2^855195894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855195894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097712000).

855195894 is an abundant number, since it is smaller than the sum of its proper divisors (1340228106).

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

855195894 is a wasteful number, since it uses less digits than its factorization.

855195894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879 (or 1870 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 54.

The square root of 855195894 is about 29243.7325593023. The cubic root of 855195894 is about 949.1944765462.

The spelling of 855195894 in words is "eight hundred fifty-five million, one hundred ninety-five thousand, eight hundred ninety-four".