854229521880 has 640 divisors, whose sum is σ = 3460406400000. Its totient is φ = 184634588160.

The previous prime is 854229521879. The next prime is 854229521923. The reversal of 854229521880 is 88125922458.

854229521880 is a `hidden beast` number, since 8 + 542 + 2 + 9 + 5 + 2 + 18 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 284836621 + ... + 284839619.

It is an arithmetic number, because the mean of its divisors is an integer number (5406885000).

Almost surely, 2^854229521880 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 854229521880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730203200000).

854229521880 is an abundant number, since it is smaller than the sum of its proper divisors (2606176878120).

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

854229521880 is a wasteful number, since it uses less digits than its factorization.

854229521880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709 (or 3696 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 854229521880 in words is "eight hundred fifty-four billion, two hundred twenty-nine million, five hundred twenty-one thousand, eight hundred eighty".