2009237858668 has 12 divisors (see below), whose sum is σ = 3637413365040. Its totient is φ = 969976897232.

The previous prime is 2009237858651. The next prime is 2009237858669. The reversal of 2009237858668 is 8668587329002.

It is not an unprimeable number, because it can be changed into a prime (2009237858669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8660507896 + ... + 8660508127.

It is an arithmetic number, because the mean of its divisors is an integer number (303117780420).

Almost surely, 2^{2009237858668} is an apocalyptic number.

It is an amenable number.

2009237858668 is a deficient number, since it is larger than the sum of its proper divisors (1628175506372).

2009237858668 is a wasteful number, since it uses less digits than its factorization.

2009237858668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17321016056 (or 17321016054 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 2009237858668 in words is "two trillion, nine billion, two hundred thirty-seven million, eight hundred fifty-eight thousand, six hundred sixty-eight".