20075434422877 has 2 divisors, whose sum is σ = 20075434422878. Its totient is φ = 20075434422876.

The previous prime is 20075434422871. The next prime is 20075434422917. The reversal of 20075434422877 is 77822443457002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20074396358916 + 1038063961 = 4480446^2 + 32219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20075434422877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20075434422871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037717211438 + 10037717211439.

It is an arithmetic number, because the mean of its divisors is an integer number (10037717211439).

Almost surely, 2^{20075434422877} is an apocalyptic number.

It is an amenable number.

20075434422877 is a deficient number, since it is larger than the sum of its proper divisors (1).

20075434422877 is an equidigital number, since it uses as much as digits as its factorization.

20075434422877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21073920, while the sum is 55.

Adding to 20075434422877 its reverse (77822443457002), we get a palindrome (97897877879879).

The spelling of 20075434422877 in words is "twenty trillion, seventy-five billion, four hundred thirty-four million, four hundred twenty-two thousand, eight hundred seventy-seven".