453474187538789 has 2 divisors, whose sum is σ = 453474187538790. Its totient is φ = 453474187538788.

The previous prime is 453474187538707. The next prime is 453474187538863. The reversal of 453474187538789 is 987835781474354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390658782708100 + 62815404830689 = 19765090^2 + 7925617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453474187538789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453474181538789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226737093769394 + 226737093769395.

It is an arithmetic number, because the mean of its divisors is an integer number (226737093769395).

Almost surely, 2^{453474187538789} is an apocalyptic number.

It is an amenable number.

453474187538789 is a deficient number, since it is larger than the sum of its proper divisors (1).

453474187538789 is an equidigital number, since it uses as much as digits as its factorization.

453474187538789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22759833600, while the sum is 83.

The spelling of 453474187538789 in words is "four hundred fifty-three trillion, four hundred seventy-four billion, one hundred eighty-seven million, five hundred thirty-eight thousand, seven hundred eighty-nine".