797968964405 has 4 divisors (see below), whose sum is σ = 957562757292. Its totient is φ = 638375171520.

The previous prime is 797968964389. The next prime is 797968964407. The reversal of 797968964405 is 504469869797.

797968964405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 434767478161 + 363201486244 = 659369^2 + 602662^2 .

It is not a de Polignac number, because 797968964405 - 2⁴ = 797968964389 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 (797968964407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79796896436 + ... + 79796896445.

It is an arithmetic number, because the mean of its divisors is an integer number (239390689323).

Almost surely, 2^797968964405 is an apocalyptic number.

It is an amenable number.

797968964405 is a deficient number, since it is larger than the sum of its proper divisors (159593792887).

797968964405 is a wasteful number, since it uses less digits than its factorization.

797968964405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159593792886.

The product of its (nonzero) digits is 823011840, while the sum is 74.

The spelling of 797968964405 in words is "seven hundred ninety-seven billion, nine hundred sixty-eight million, nine hundred sixty-four thousand, four hundred five".