971747983520916 has 192 divisors, whose sum is σ = 2713754040238080. Its totient is φ = 264788491968000.

The previous prime is 971747983520911. The next prime is 971747983521011. The reversal of 971747983520916 is 619025389747179.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971747983520911) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431690850 + ... + 433936038.

It is an arithmetic number, because the mean of its divisors is an integer number (14134135626240).

It is a 3-persistent number, because k⋅971747983520916 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

Almost surely, 2^{971747983520916} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 971747983520916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356877020119040).

971747983520916 is an abundant number, since it is smaller than the sum of its proper divisors (1742006056717164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971747983520916 is a wasteful number, since it uses less digits than its factorization.

971747983520916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247646 (or 2247644 counting only the distinct ones).

The product of its (nonzero) digits is 1440270720, while the sum is 78.

The spelling of 971747983520916 in words is "nine hundred seventy-one trillion, seven hundred forty-seven billion, nine hundred eighty-three million, five hundred twenty thousand, nine hundred sixteen".