797172808271797 has 16 divisors (see below), whose sum is σ = 819263599096320. Its totient is φ = 775298658417408.

The previous prime is 797172808271773. The next prime is 797172808271831.

797172808271797 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 797172808271797 - 2¹¹ = 797172808269749 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 797172808271797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797172808071797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9464779 + ... + 41035687.

It is an arithmetic number, because the mean of its divisors is an integer number (51203974943520).

Almost surely, 2^{797172808271797} is an apocalyptic number.

It is an amenable number.

797172808271797 is a deficient number, since it is larger than the sum of its proper divisors (22090790824523).

797172808271797 is a wasteful number, since it uses less digits than its factorization.

797172808271797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31574340.

The product of its (nonzero) digits is 2439569664, while the sum is 82.

The spelling of 797172808271797 in words is "seven hundred ninety-seven trillion, one hundred seventy-two billion, eight hundred eight million, two hundred seventy-one thousand, seven hundred ninety-seven".