297327006728 has 32 divisors (see below), whose sum is σ = 567063936000. Its totient is φ = 146111085120.

The previous prime is 297327006689. The next prime is 297327006731. The reversal of 297327006728 is 827600723792.

It is a Cunningham number, because it is equal to 545277²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 297327006728.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112953 + ... + 2249271.

It is an arithmetic number, because the mean of its divisors is an integer number (17720748000).

Almost surely, 2^297327006728 is an apocalyptic number.

It is an amenable number.

297327006728 is a deficient number, since it is larger than the sum of its proper divisors (269736929272).

297327006728 is a wasteful number, since it uses less digits than its factorization.

297327006728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141005 (or 141001 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 297327006728 in words is "two hundred ninety-seven billion, three hundred twenty-seven million, six thousand, seven hundred twenty-eight".