691960832806 has 16 divisors (see below), whose sum is σ = 1046079509904. Its totient is φ = 343278157824.

The previous prime is 691960832791. The next prime is 691960832821. The reversal of 691960832806 is 608238069196.

It is an interprime number because it is at equal distance from previous prime (691960832791) and next prime (691960832821).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2491611 + ... + 2755366.

It is an arithmetic number, because the mean of its divisors is an integer number (65379969369).

Almost surely, 2^691960832806 is an apocalyptic number.

691960832806 is a deficient number, since it is larger than the sum of its proper divisors (354118677098).

691960832806 is a wasteful number, since it uses less digits than its factorization.

691960832806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247495.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 691960832806 in words is "six hundred ninety-one billion, nine hundred sixty million, eight hundred thirty-two thousand, eight hundred six".