854425391904 has 504 divisors, whose sum is σ = 2870590701888. Its totient is φ = 241052716800.

The previous prime is 854425391899. The next prime is 854425391917. The reversal of 854425391904 is 409193524458.

It is a happy number.

854425391904 is a `hidden beast` number, since 8 + 5 + 442 + 5 + 3 + 9 + 190 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 5116319629 + ... + 5116319795.

It is an arithmetic number, because the mean of its divisors is an integer number (5695616472).

Almost surely, 2^854425391904 is an apocalyptic number.

854425391904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854425391904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1435295350944).

854425391904 is an abundant number, since it is smaller than the sum of its proper divisors (2016165309984).

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

854425391904 is an equidigital number, since it uses as much as digits as its factorization.

854425391904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 854425391904 in words is "eight hundred fifty-four billion, four hundred twenty-five million, three hundred ninety-one thousand, nine hundred four".