2009438808193 has 16 divisors (see below), whose sum is σ = 2038416183360. Its totient is φ = 1980611702784.

The previous prime is 2009438808101. The next prime is 2009438808203. The reversal of 2009438808193 is 3918088349002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2009438808193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009438808493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45437230 + ... + 45481432.

It is an arithmetic number, because the mean of its divisors is an integer number (127401011460).

Almost surely, 2^{2009438808193} is an apocalyptic number.

It is an amenable number.

2009438808193 is a deficient number, since it is larger than the sum of its proper divisors (28977375167).

2009438808193 is a wasteful number, since it uses less digits than its factorization.

2009438808193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45888.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 2009438808193 in words is "two trillion, nine billion, four hundred thirty-eight million, eight hundred eight thousand, one hundred ninety-three".