297728523774 has 128 divisors (see below), whose sum is σ = 739259136000. Its totient is φ = 88045280640.

The previous prime is 297728523767. The next prime is 297728523779. The reversal of 297728523774 is 477325827792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297728523779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9728104 + ... + 9758660.

It is an arithmetic number, because the mean of its divisors is an integer number (5775462000).

Almost surely, 2^297728523774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297728523774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369629568000).

297728523774 is an abundant number, since it is smaller than the sum of its proper divisors (441530612226).

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

297728523774 is a wasteful number, since it uses less digits than its factorization.

297728523774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30975 (or 30969 counting only the distinct ones).

The product of its digits is 82978560, while the sum is 63.

The spelling of 297728523774 in words is "two hundred ninety-seven billion, seven hundred twenty-eight million, five hundred twenty-three thousand, seven hundred seventy-four".