814493497541 has 2 divisors, whose sum is σ = 814493497542. Its totient is φ = 814493497540.

The previous prime is 814493497529. The next prime is 814493497603. The reversal of 814493497541 is 145794394418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810487873441 + 4005624100 = 900271^2 + 63290^2 .

It is a cyclic number.

It is not a de Polignac number, because 814493497541 - 2¹⁴ = 814493481157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814493497241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407246748770 + 407246748771.

It is an arithmetic number, because the mean of its divisors is an integer number (407246748771).

Almost surely, 2^814493497541 is an apocalyptic number.

It is an amenable number.

814493497541 is a deficient number, since it is larger than the sum of its proper divisors (1).

814493497541 is an equidigital number, since it uses as much as digits as its factorization.

814493497541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 59.

The spelling of 814493497541 in words is "eight hundred fourteen billion, four hundred ninety-three million, four hundred ninety-seven thousand, five hundred forty-one".