20214043439 has 2 divisors, whose sum is σ = 20214043440. Its totient is φ = 20214043438.

The previous prime is 20214043397. The next prime is 20214043441. The reversal of 20214043439 is 93434041202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20214043439 - 2¹² = 20214039343 is a prime.

Together with 20214043441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20214343439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107021719 + 10107021720.

It is an arithmetic number, because the mean of its divisors is an integer number (10107021720).

Almost surely, 2^20214043439 is an apocalyptic number.

20214043439 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214043439 is an equidigital number, since it uses as much as digits as its factorization.

20214043439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 20214043439 in words is "twenty billion, two hundred fourteen million, forty-three thousand, four hundred thirty-nine".