20344331011439 has 2 divisors, whose sum is σ = 20344331011440. Its totient is φ = 20344331011438.

The previous prime is 20344331011427. The next prime is 20344331011463. The reversal of 20344331011439 is 93411013344302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344331011439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20344331011139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172165505719 + 10172165505720.

It is an arithmetic number, because the mean of its divisors is an integer number (10172165505720).

Almost surely, 2^{20344331011439} is an apocalyptic number.

20344331011439 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344331011439 is an equidigital number, since it uses as much as digits as its factorization.

20344331011439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 20344331011439 in words is "twenty trillion, three hundred forty-four billion, three hundred thirty-one million, eleven thousand, four hundred thirty-nine".