2431978813439 has 8 divisors (see below), whose sum is σ = 2779592642688. Its totient is φ = 2084412055320.

The previous prime is 2431978813373. The next prime is 2431978813441. The reversal of 2431978813439 is 9343188791342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2431978813439 - 2¹² = 2431978809343 is a prime.

It is a super-3 number, since 3×2431978813439³ (a number of 38 digits) contains 333 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 (2431978815439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11656997 + ... + 11863790.

It is an arithmetic number, because the mean of its divisors is an integer number (347449080336).

Almost surely, 2^{2431978813439} is an apocalyptic number.

2431978813439 is a deficient number, since it is larger than the sum of its proper divisors (347613829249).

2431978813439 is a wasteful number, since it uses less digits than its factorization.

2431978813439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23535565.

The product of its digits is 31352832, while the sum is 62.

The spelling of 2431978813439 in words is "two trillion, four hundred thirty-one billion, nine hundred seventy-eight million, eight hundred thirteen thousand, four hundred thirty-nine".