854394329880 has 1024 divisors, whose sum is σ = 3669597388800. Its totient is φ = 171865774080.

The previous prime is 854394329879. The next prime is 854394329953. The reversal of 854394329880 is 88923493458.

854394329880 is a `hidden beast` number, since 8 + 5 + 4 + 39 + 432 + 98 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1236460335 + ... + 1236461025.

It is an arithmetic number, because the mean of its divisors is an integer number (3583591200).

Almost surely, 2^854394329880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854394329880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1834798694400).

854394329880 is an abundant number, since it is smaller than the sum of its proper divisors (2815203058920).

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

854394329880 is a wasteful number, since it uses less digits than its factorization.

854394329880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 63.

The spelling of 854394329880 in words is "eight hundred fifty-four billion, three hundred ninety-four million, three hundred twenty-nine thousand, eight hundred eighty".