971996508480 has 448 divisors, whose sum is σ = 3337135718400. Its totient is φ = 238994595840.

The previous prime is 971996508467. The next prime is 971996508491. The reversal of 971996508480 is 84805699179.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 184122481 + ... + 184127759.

Almost surely, 2^971996508480 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 971996508480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668567859200).

971996508480 is an abundant number, since it is smaller than the sum of its proper divisors (2365139209920).

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

971996508480 is a wasteful number, since it uses less digits than its factorization.

971996508480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622 (or 5612 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 971996508480 in words is "nine hundred seventy-one billion, nine hundred ninety-six million, five hundred eight thousand, four hundred eighty".