2109004877439 has 8 divisors (see below), whose sum is σ = 3124451670320. Its totient is φ = 1406003251608.

The previous prime is 2109004877437. The next prime is 2109004877453. The reversal of 2109004877439 is 9347784009012.

2109004877439 is a `hidden beast` number, since 2 + 1 + 0 + 90 + 0 + 487 + 74 + 3 + 9 = 666.

It is not a de Polignac number, because 2109004877439 - 2¹ = 2109004877437 is a prime.

It is a super-2 number, since 2×2109004877439² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109004877437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39055645852 + ... + 39055645905.

It is an arithmetic number, because the mean of its divisors is an integer number (390556458790).

Almost surely, 2^{2109004877439} is an apocalyptic number.

2109004877439 is a deficient number, since it is larger than the sum of its proper divisors (1015446792881).

2109004877439 is an equidigital number, since it uses as much as digits as its factorization.

2109004877439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78111291766 (or 78111291760 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 2109004877439 in words is "two trillion, one hundred nine billion, four million, eight hundred seventy-seven thousand, four hundred thirty-nine".