681410880 has 392 divisors, whose sum is σ = 2558564352. Its totient is φ = 172440576.

The previous prime is 681410869. The next prime is 681410897. The reversal of 681410880 is 88014186.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5365377 + ... + 5365503.

Almost surely, 2^681410880 is an apocalyptic number.

681410880 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 681410880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279282176).

681410880 is an abundant number, since it is smaller than the sum of its proper divisors (1877153472).

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

681410880 is a wasteful number, since it uses less digits than its factorization.

681410880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 681410880 is about 26103.8479922022. The cubic root of 681410880 is about 879.9736906735.

The spelling of 681410880 in words is "six hundred eighty-one million, four hundred ten thousand, eight hundred eighty".