20514024439 has 2 divisors, whose sum is σ = 20514024440. Its totient is φ = 20514024438.

The previous prime is 20514024383. The next prime is 20514024469. The reversal of 20514024439 is 93442041502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20514024439 - 2¹⁵ = 20513991671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20514024469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257012219 + 10257012220.

It is an arithmetic number, because the mean of its divisors is an integer number (10257012220).

Almost surely, 2^20514024439 is an apocalyptic number.

20514024439 is a deficient number, since it is larger than the sum of its proper divisors (1).

20514024439 is an equidigital number, since it uses as much as digits as its factorization.

20514024439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 20514024439 in words is "twenty billion, five hundred fourteen million, twenty-four thousand, four hundred thirty-nine".