20412000439 has 2 divisors, whose sum is σ = 20412000440. Its totient is φ = 20412000438.

The previous prime is 20412000397. The next prime is 20412000449. The reversal of 20412000439 is 93400021402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20412000439 - 2¹³ = 20411992247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20412000449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206000219 + 10206000220.

It is an arithmetic number, because the mean of its divisors is an integer number (10206000220).

Almost surely, 2^20412000439 is an apocalyptic number.

20412000439 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412000439 is an equidigital number, since it uses as much as digits as its factorization.

20412000439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 20412000439 in words is "twenty billion, four hundred twelve million, four hundred thirty-nine", and thus it is an aban number.