681756352332 has 48 divisors (see below), whose sum is σ = 1740959910144. Its totient is φ = 205928536000.

The previous prime is 681756352309. The next prime is 681756352363. The reversal of 681756352332 is 233253657186.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8262519 + ... + 8344622.

It is an arithmetic number, because the mean of its divisors is an integer number (36269998128).

Almost surely, 2^681756352332 is an apocalyptic number.

It is an amenable number.

681756352332 is an abundant number, since it is smaller than the sum of its proper divisors (1059203557812).

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

681756352332 is a wasteful number, since it uses less digits than its factorization.

681756352332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16607470 (or 16607468 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The spelling of 681756352332 in words is "six hundred eighty-one billion, seven hundred fifty-six million, three hundred fifty-two thousand, three hundred thirty-two".