797788664791 has 8 divisors (see below), whose sum is σ = 805971252704. Its totient is φ = 789644224800.

The previous prime is 797788664773. The next prime is 797788664807. The reversal of 797788664791 is 197466887797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 797788664791 - 2⁵ = 797788664759 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 (797788664731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9494940 + ... + 9578593.

It is an arithmetic number, because the mean of its divisors is an integer number (100746406588).

Almost surely, 2^797788664791 is an apocalyptic number.

797788664791 is a deficient number, since it is larger than the sum of its proper divisors (8182587913).

797788664791 is a wasteful number, since it uses less digits than its factorization.

797788664791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19073961.

The product of its digits is 1792336896, while the sum is 79.

The spelling of 797788664791 in words is "seven hundred ninety-seven billion, seven hundred eighty-eight million, six hundred sixty-four thousand, seven hundred ninety-one".