974239791131376 has 640 divisors, whose sum is σ = 3810624767262720. Its totient is φ = 230481328435200.

The previous prime is 974239791131357. The next prime is 974239791131377. The reversal of 974239791131376 is 673131197932479.

974239791131376 is a `hidden beast` number, since 9 + 7 + 4 + 2 + 39 + 7 + 91 + 131 + 376 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974239791131377) 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 127 ways as a sum of consecutive naturals, for example, 10257456 + ... + 45317711.

It is an arithmetic number, because the mean of its divisors is an integer number (5954101198848).

Almost surely, 2^{974239791131376} 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 974239791131376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905312383631360).

974239791131376 is an abundant number, since it is smaller than the sum of its proper divisors (2836384976131344).

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

974239791131376 is a wasteful number, since it uses less digits than its factorization.

974239791131376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55575250 (or 55575238 counting only the distinct ones).

The product of its digits is 324060912, while the sum is 72.

The spelling of 974239791131376 in words is "nine hundred seventy-four trillion, two hundred thirty-nine billion, seven hundred ninety-one million, one hundred thirty-one thousand, three hundred seventy-six".