855394751904 has 384 divisors, whose sum is σ = 2949831198720. Its totient is φ = 210271334400.

The previous prime is 855394751879. The next prime is 855394751927. The reversal of 855394751904 is 409157493558.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170360914 + ... + 170365934.

It is an arithmetic number, because the mean of its divisors is an integer number (7681852080).

Almost surely, 2^855394751904 is an apocalyptic number.

855394751904 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 855394751904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474915599360).

855394751904 is an abundant number, since it is smaller than the sum of its proper divisors (2094436446816).

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

855394751904 is a wasteful number, since it uses less digits than its factorization.

855394751904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6284 (or 6276 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 60.

The spelling of 855394751904 in words is "eight hundred fifty-five billion, three hundred ninety-four million, seven hundred fifty-one thousand, nine hundred four".