974778873720 has 128 divisors (see below), whose sum is σ = 2935231214400. Its totient is φ = 258973958144.

The previous prime is 974778873701. The next prime is 974778873737. The reversal of 974778873720 is 27378877479.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 50525836 + ... + 50545124.

Almost surely, 2^974778873720 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 974778873720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467615607200).

974778873720 is an abundant number, since it is smaller than the sum of its proper divisors (1960452340680).

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

974778873720 is a wasteful number, since it uses less digits than its factorization.

974778873720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20849 (or 20845 counting only the distinct ones).

The product of its (nonzero) digits is 232339968, while the sum is 69.

The spelling of 974778873720 in words is "nine hundred seventy-four billion, seven hundred seventy-eight million, eight hundred seventy-three thousand, seven hundred twenty".