971196426240 has 192 divisors, whose sum is σ = 3118154719680. Its totient is φ = 258061762560.

The previous prime is 971196426199. The next prime is 971196426247. The reversal of 971196426240 is 42624691179.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (971196426247) 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, 8576067 + ... + 8688573.

It is an arithmetic number, because the mean of its divisors is an integer number (16240389165).

Almost surely, 2^971196426240 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 971196426240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559077359840).

971196426240 is an abundant number, since it is smaller than the sum of its proper divisors (2146958293440).

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

971196426240 is a wasteful number, since it uses less digits than its factorization.

971196426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112818 (or 112798 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 971196426240 in words is "nine hundred seventy-one billion, one hundred ninety-six million, four hundred twenty-six thousand, two hundred forty".