681152044 has 12 divisors (see below), whose sum is σ = 1192791600. Its totient is φ = 340354448.

The previous prime is 681151993. The next prime is 681152053. The reversal of 681152044 is 440251186.

It is a junction number, because it is equal to n+sod(n) for n = 681151997 and 681152015.

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 3 ways as a sum of consecutive naturals, for example, 48379 + ... + 60850.

It is an arithmetic number, because the mean of its divisors is an integer number (99399300).

Almost surely, 2^681152044 is an apocalyptic number.

It is an amenable number.

681152044 is a deficient number, since it is larger than the sum of its proper divisors (511639556).

681152044 is a wasteful number, since it uses less digits than its factorization.

681152044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110792 (or 110790 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 681152044 is about 26098.8897081849. The cubic root of 681152044 is about 879.8622563331.

The spelling of 681152044 in words is "six hundred eighty-one million, one hundred fifty-two thousand, forty-four".