20545462433 has 2 divisors, whose sum is σ = 20545462434. Its totient is φ = 20545462432.

The previous prime is 20545462391. The next prime is 20545462439. The reversal of 20545462433 is 33426454502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20331337744 + 214124689 = 142588^2 + 14633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20545462433 is a prime.

It is not a weakly prime, because it can be changed into another prime (20545462439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10272731216 + 10272731217.

It is an arithmetic number, because the mean of its divisors is an integer number (10272731217).

Almost surely, 2^20545462433 is an apocalyptic number.

It is an amenable number.

20545462433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20545462433 is an equidigital number, since it uses as much as digits as its factorization.

20545462433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 20545462433 in words is "twenty billion, five hundred forty-five million, four hundred sixty-two thousand, four hundred thirty-three".