20757184453 has 2 divisors, whose sum is σ = 20757184454. Its totient is φ = 20757184452.

The previous prime is 20757184411. The next prime is 20757184457. The reversal of 20757184453 is 35448175702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19924169409 + 833015044 = 141153^2 + 28862^2 .

It is a cyclic number.

It is not a de Polignac number, because 20757184453 - 2²⁵ = 20723630021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20757184457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10378592226 + 10378592227.

It is an arithmetic number, because the mean of its divisors is an integer number (10378592227).

Almost surely, 2^20757184453 is an apocalyptic number.

It is an amenable number.

20757184453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20757184453 is an equidigital number, since it uses as much as digits as its factorization.

20757184453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 20757184453 in words is "twenty billion, seven hundred fifty-seven million, one hundred eighty-four thousand, four hundred fifty-three".