681078060 has 288 divisors, whose sum is σ = 2362913280. Its totient is φ = 157593600.

The previous prime is 681078017. The next prime is 681078071. The reversal of 681078060 is 60870186.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2974026 + ... + 2974254.

It is an arithmetic number, because the mean of its divisors is an integer number (8204560).

Almost surely, 2^681078060 is an apocalyptic number.

681078060 is a gapful number since it is divisible by the number (60) 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 681078060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181456640).

681078060 is an abundant number, since it is smaller than the sum of its proper divisors (1681835220).

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

681078060 is a wasteful number, since it uses less digits than its factorization.

681078060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 681078060 is about 26097.4722913925. The cubic root of 681078060 is about 879.8303994779.

It can be divided in two parts, 68107 and 8060, that added together give a palindrome (76167).

The spelling of 681078060 in words is "six hundred eighty-one million, seventy-eight thousand, sixty".