180115453457 has 2 divisors, whose sum is σ = 180115453458. Its totient is φ = 180115453456.

The previous prime is 180115453423. The next prime is 180115453487. The reversal of 180115453457 is 754354511081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180044067856 + 71385601 = 424316^2 + 8449^2 .

It is an emirp because it is prime and its reverse (754354511081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180115453457 - 2³⁰ = 179041711633 is a prime.

It is not a weakly prime, because it can be changed into another prime (180115453417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90057726728 + 90057726729.

It is an arithmetic number, because the mean of its divisors is an integer number (90057726729).

Almost surely, 2^180115453457 is an apocalyptic number.

It is an amenable number.

180115453457 is a deficient number, since it is larger than the sum of its proper divisors (1).

180115453457 is an equidigital number, since it uses as much as digits as its factorization.

180115453457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 180115453457 in words is "one hundred eighty billion, one hundred fifteen million, four hundred fifty-three thousand, four hundred fifty-seven".