681434104675 has 12 divisors (see below), whose sum is σ = 845627813856. Its totient is φ = 544728236000.

The previous prime is 681434104643. The next prime is 681434104763. The reversal of 681434104675 is 576401434186.

It is not a de Polignac number, because 681434104675 - 2⁵ = 681434104643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10443019 + ... + 10508068.

It is an arithmetic number, because the mean of its divisors is an integer number (70468984488).

Almost surely, 2^681434104675 is an apocalyptic number.

681434104675 is a deficient number, since it is larger than the sum of its proper divisors (164193709181).

681434104675 is a wasteful number, since it uses less digits than its factorization.

681434104675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20952398 (or 20952393 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 681434104675 in words is "six hundred eighty-one billion, four hundred thirty-four million, one hundred four thousand, six hundred seventy-five".