20044411547 has 2 divisors, whose sum is σ = 20044411548. Its totient is φ = 20044411546.

The previous prime is 20044411451. The next prime is 20044411559. The reversal of 20044411547 is 74511444002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20044411547 - 2⁸ = 20044411291 is a prime.

It is not a weakly prime, because it can be changed into another prime (20044411577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022205773 + 10022205774.

It is an arithmetic number, because the mean of its divisors is an integer number (10022205774).

Almost surely, 2^20044411547 is an apocalyptic number.

20044411547 is a deficient number, since it is larger than the sum of its proper divisors (1).

20044411547 is an equidigital number, since it uses as much as digits as its factorization.

20044411547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 32.

Adding to 20044411547 its reverse (74511444002), we get a palindrome (94555855549).

The spelling of 20044411547 in words is "twenty billion, forty-four million, four hundred eleven thousand, five hundred forty-seven".