681067532613 has 16 divisors (see below), whose sum is σ = 979021391936. Its totient is φ = 418656366720.

The previous prime is 681067532611. The next prime is 681067532689. The reversal of 681067532613 is 316235760186.

It is not a de Polignac number, because 681067532613 - 2¹ = 681067532611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681067532611) 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 15 ways as a sum of consecutive naturals, for example, 9591568 + ... + 9662313.

It is an arithmetic number, because the mean of its divisors is an integer number (61188836996).

Almost surely, 2^681067532613 is an apocalyptic number.

It is an amenable number.

681067532613 is a deficient number, since it is larger than the sum of its proper divisors (297953859323).

681067532613 is a wasteful number, since it uses less digits than its factorization.

681067532613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19254804.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 681067532613 in words is "six hundred eighty-one billion, sixty-seven million, five hundred thirty-two thousand, six hundred thirteen".