696683588391 has 12 divisors (see below), whose sum is σ = 1150080844432. Its totient is φ = 398104907616.

The previous prime is 696683588387. The next prime is 696683588429. The reversal of 696683588391 is 193885386696.

696683588391 is a `hidden beast` number, since 6 + 9 + 6 + 6 + 8 + 3 + 588 + 39 + 1 = 666.

It is not a de Polignac number, because 696683588391 - 2² = 696683588387 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 (696683588351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5529234766 + ... + 5529234891.

Almost surely, 2^696683588391 is an apocalyptic number.

696683588391 is a deficient number, since it is larger than the sum of its proper divisors (453397256041).

696683588391 is a wasteful number, since it uses less digits than its factorization.

696683588391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058469670 (or 11058469667 counting only the distinct ones).

The product of its digits is 403107840, while the sum is 72.

The spelling of 696683588391 in words is "six hundred ninety-six billion, six hundred eighty-three million, five hundred eighty-eight thousand, three hundred ninety-one".