854881680 has 80 divisors (see below), whose sum is σ = 2695095360. Its totient is φ = 224100864.

The previous prime is 854881663. The next prime is 854881681. The reversal of 854881680 is 86188458.

854881680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (854881681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16027 + ... + 44346.

It is an arithmetic number, because the mean of its divisors is an integer number (33688692).

Almost surely, 2^854881680 is an apocalyptic number.

854881680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

854881680 is an abundant number, since it is smaller than the sum of its proper divisors (1840213680).

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

854881680 is a wasteful number, since it uses less digits than its factorization.

854881680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60448 (or 60442 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 48.

The square root of 854881680 is about 29238.3597351151. The cubic root of 854881680 is about 949.0782120621.

The spelling of 854881680 in words is "eight hundred fifty-four million, eight hundred eighty-one thousand, six hundred eighty".