4097891637009 has 24 divisors (see below), whose sum is σ = 6233823641760. Its totient is φ = 2586849737472.

The previous prime is 4097891637001. The next prime is 4097891637011. The reversal of 4097891637009 is 9007361987904.

4097891637009 is a `hidden beast` number, since 409 + 78 + 91 + 6 + 3 + 70 + 0 + 9 = 666.

It is not a de Polignac number, because 4097891637009 - 2³ = 4097891637001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4097891637001) 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 23 ways as a sum of consecutive naturals, for example, 5639584 + ... + 6324609.

It is an arithmetic number, because the mean of its divisors is an integer number (259742651740).

Almost surely, 2^{4097891637009} is an apocalyptic number.

It is an amenable number.

4097891637009 is a deficient number, since it is larger than the sum of its proper divisors (2135932004751).

4097891637009 is a wasteful number, since it uses less digits than its factorization.

4097891637009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966221 (or 11966218 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 4097891637009 in words is "four trillion, ninety-seven billion, eight hundred ninety-one million, six hundred thirty-seven thousand, nine".