20027075447 has 2 divisors, whose sum is σ = 20027075448. Its totient is φ = 20027075446.

The previous prime is 20027075443. The next prime is 20027075479. The reversal of 20027075447 is 74457072002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20027075447 - 2² = 20027075443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20027075447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20027075441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10013537723 + 10013537724.

It is an arithmetic number, because the mean of its divisors is an integer number (10013537724).

Almost surely, 2^20027075447 is an apocalyptic number.

20027075447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20027075447 is an equidigital number, since it uses as much as digits as its factorization.

20027075447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109760, while the sum is 38.

The spelling of 20027075447 in words is "twenty billion, twenty-seven million, seventy-five thousand, four hundred forty-seven".