681346680074 has 16 divisors (see below), whose sum is σ = 1067143053600. Its totient is φ = 325851905904.

The previous prime is 681346680071. The next prime is 681346680083. The reversal of 681346680074 is 470086643186.

It is a junction number, because it is equal to n+sod(n) for n = 681346679998 and 681346680025.

It is not an unprimeable number, because it can be changed into a prime (681346680071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54887984 + ... + 54900395.

It is an arithmetic number, because the mean of its divisors is an integer number (66696440850).

Almost surely, 2^681346680074 is an apocalyptic number.

681346680074 is a deficient number, since it is larger than the sum of its proper divisors (385796373526).

681346680074 is a wasteful number, since it uses less digits than its factorization.

681346680074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109788517.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 681346680074 in words is "six hundred eighty-one billion, three hundred forty-six million, six hundred eighty thousand, seventy-four".