297128385905 has 32 divisors (see below), whose sum is σ = 386755692288. Its totient is φ = 217834272000.

The previous prime is 297128385901. The next prime is 297128385913. The reversal of 297128385905 is 509583821792.

It is not a de Polignac number, because 297128385905 - 2² = 297128385901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (297128385901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18257582 + ... + 18273848.

It is an arithmetic number, because the mean of its divisors is an integer number (12086115384).

Almost surely, 2^297128385905 is an apocalyptic number.

It is an amenable number.

297128385905 is a deficient number, since it is larger than the sum of its proper divisors (89627306383).

297128385905 is a wasteful number, since it uses less digits than its factorization.

297128385905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18297.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 297128385905 in words is "two hundred ninety-seven billion, one hundred twenty-eight million, three hundred eighty-five thousand, nine hundred five".