971396774871 has 8 divisors (see below), whose sum is σ = 1295259367920. Its totient is φ = 647566015872.

The previous prime is 971396774837. The next prime is 971396774897. The reversal of 971396774871 is 178477693179.

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

It is not a de Polignac number, because 971396774871 - 2¹⁰ = 971396773847 is a prime.

It is a super-2 number, since 2×971396774871² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 971396774796 and 971396774805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971396774771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7887220 + ... + 8009433.

It is an arithmetic number, because the mean of its divisors is an integer number (161907420990).

Almost surely, 2^971396774871 is an apocalyptic number.

971396774871 is a deficient number, since it is larger than the sum of its proper divisors (323862593049).

971396774871 is a wasteful number, since it uses less digits than its factorization.

971396774871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15917025.

The product of its digits is 112021056, while the sum is 69.

The spelling of 971396774871 in words is "nine hundred seventy-one billion, three hundred ninety-six million, seven hundred seventy-four thousand, eight hundred seventy-one".