696609497647 has 6 divisors (see below), whose sum is σ = 796127663864. Its totient is φ = 597091962360.

The previous prime is 696609497629. The next prime is 696609497657. The reversal of 696609497647 is 746794906696.

It is not a de Polignac number, because 696609497647 - 2³⁹ = 146853683759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 696609497647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696609497657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2050497 + ... + 2365957.

Almost surely, 2^696609497647 is an apocalyptic number.

696609497647 is a deficient number, since it is larger than the sum of its proper divisors (99518166217).

696609497647 is an frugal number, since it uses more digits than its factorization.

696609497647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630929 (or 315468 counting only the distinct ones).

The product of its (nonzero) digits is 740710656, while the sum is 73.

The spelling of 696609497647 in words is "six hundred ninety-six billion, six hundred nine million, four hundred ninety-seven thousand, six hundred forty-seven".