997539300268 has 12 divisors (see below), whose sum is σ = 1995078600592. Its totient is φ = 427516842960.

The previous prime is 997539300139. The next prime is 997539300271. The reversal of 997539300268 is 862003935799.

997539300268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

997539300268 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17813201763 + ... + 17813201818.

Almost surely, 2^997539300268 is an apocalyptic number.

It is an amenable number.

997539300268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

997539300268 is a wasteful number, since it uses less digits than its factorization.

997539300268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35626403592 (or 35626403590 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 997539300268 in words is "nine hundred ninety-seven billion, five hundred thirty-nine million, three hundred thousand, two hundred sixty-eight".