2009758738939 has 16 divisors (see below), whose sum is σ = 2305043919360. Its totient is φ = 1716521564160.

The previous prime is 2009758738937. The next prime is 2009758738943. The reversal of 2009758738939 is 9398378579002.

It is a cyclic number.

It is not a de Polignac number, because 2009758738939 - 2¹ = 2009758738937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2009758738937) 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, 6241147 + ... + 6555259.

It is an arithmetic number, because the mean of its divisors is an integer number (144065244960).

Almost surely, 2^{2009758738939} is an apocalyptic number.

2009758738939 is a deficient number, since it is larger than the sum of its proper divisors (295285180421).

2009758738939 is a wasteful number, since it uses less digits than its factorization.

2009758738939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317370.

The product of its (nonzero) digits is 205752960, while the sum is 70.

The spelling of 2009758738939 in words is "two trillion, nine billion, seven hundred fifty-eight million, seven hundred thirty-eight thousand, nine hundred thirty-nine".