681254880 has 96 divisors (see below), whose sum is σ = 2258928000. Its totient is φ = 172104192.

The previous prime is 681254867. The next prime is 681254881. The reversal of 681254880 is 88452186.

681254880 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 (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681254881) 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, 28230 + ... + 46469.

It is an arithmetic number, because the mean of its divisors is an integer number (23530500).

Almost surely, 2^681254880 is an apocalyptic number.

681254880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

681254880 is an abundant number, since it is smaller than the sum of its proper divisors (1577673120).

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

681254880 is a wasteful number, since it uses less digits than its factorization.

681254880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74736 (or 74728 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 681254880 is about 26100.8597559544. The cubic root of 681254880 is about 879.9065327727.

The spelling of 681254880 in words is "six hundred eighty-one million, two hundred fifty-four thousand, eight hundred eighty".