797876465665 has 8 divisors (see below), whose sum is σ = 1013772450600. Its totient is φ = 600754044672.

The previous prime is 797876465653. The next prime is 797876465669. The reversal of 797876465665 is 566564678797.

It can be written as a sum of positive squares in 4 ways, for example, as 222316022016 + 575560443649 = 471504^2 + 758657^2 .

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

It is not a de Polignac number, because 797876465665 - 2⁷ = 797876465537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 797876465591 and 797876465600.

It is not an unprimeable number, because it can be changed into a prime (797876465669) 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, 4693390890 + ... + 4693391059.

It is an arithmetic number, because the mean of its divisors is an integer number (126721556325).

Almost surely, 2^797876465665 is an apocalyptic number.

It is an amenable number.

797876465665 is a deficient number, since it is larger than the sum of its proper divisors (215895984935).

797876465665 is a wasteful number, since it uses less digits than its factorization.

797876465665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9386781971.

The product of its digits is 3200601600, while the sum is 76.

The spelling of 797876465665 in words is "seven hundred ninety-seven billion, eight hundred seventy-six million, four hundred sixty-five thousand, six hundred sixty-five".