2309873131439 has 4 divisors (see below), whose sum is σ = 2310039646656. Its totient is φ = 2309706616224.

The previous prime is 2309873131427. The next prime is 2309873131457. The reversal of 2309873131439 is 9341313789032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2309873131439 - 2³² = 2305578164143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309873131459) 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, 83236799 + ... + 83264544.

It is an arithmetic number, because the mean of its divisors is an integer number (577509911664).

Almost surely, 2^{2309873131439} is an apocalyptic number.

2309873131439 is a deficient number, since it is larger than the sum of its proper divisors (166515217).

2309873131439 is a wasteful number, since it uses less digits than its factorization.

2309873131439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166515216.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 2309873131439 in words is "two trillion, three hundred nine billion, eight hundred seventy-three million, one hundred thirty-one thousand, four hundred thirty-nine".