797741265571 has 4 divisors (see below), whose sum is σ = 797779659600. Its totient is φ = 797702871544.

The previous prime is 797741265539. The next prime is 797741265611. The reversal of 797741265571 is 175562147797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 175562147797 = 71 ⋅2472706307.

It is a cyclic number.

It is not a de Polignac number, because 797741265571 - 2⁵ = 797741265539 is a prime.

It is a super-2 number, since 2×797741265571² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797741265071) 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, 19165831 + ... + 19207408.

It is an arithmetic number, because the mean of its divisors is an integer number (199444914900).

Almost surely, 2^797741265571 is an apocalyptic number.

797741265571 is a deficient number, since it is larger than the sum of its proper divisors (38394029).

797741265571 is a wasteful number, since it uses less digits than its factorization.

797741265571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38394028.

The product of its digits is 25930800, while the sum is 61.

The spelling of 797741265571 in words is "seven hundred ninety-seven billion, seven hundred forty-one million, two hundred sixty-five thousand, five hundred seventy-one".