2431271972939 has 4 divisors (see below), whose sum is σ = 2487813181656. Its totient is φ = 2374730764224.

The previous prime is 2431271972893. The next prime is 2431271972963. The reversal of 2431271972939 is 9392791721342.

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 2431271972939 - 2²⁰ = 2431270924363 is a prime.

It is a super-2 number, since 2×2431271972939² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2431271972989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28270604294 + ... + 28270604379.

It is an arithmetic number, because the mean of its divisors is an integer number (621953295414).

Almost surely, 2^{2431271972939} is an apocalyptic number.

2431271972939 is a deficient number, since it is larger than the sum of its proper divisors (56541208717).

2431271972939 is an equidigital number, since it uses as much as digits as its factorization.

2431271972939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56541208716.

The product of its digits is 10287648, while the sum is 59.

The spelling of 2431271972939 in words is "two trillion, four hundred thirty-one billion, two hundred seventy-one million, nine hundred seventy-two thousand, nine hundred thirty-nine".