2545486171289 has 4 divisors (see below), whose sum is σ = 2545499641956. Its totient is φ = 2545472700624.

The previous prime is 2545486171259. The next prime is 2545486171321. The reversal of 2545486171289 is 9821716845452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 577896438025 + 1967589733264 = 760195^2 + 1402708^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545486171289 - 2¹² = 2545486167193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545486171259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6447794 + ... + 6831179.

It is an arithmetic number, because the mean of its divisors is an integer number (636374910489).

Almost surely, 2^{2545486171289} is an apocalyptic number.

It is an amenable number.

2545486171289 is a deficient number, since it is larger than the sum of its proper divisors (13470667).

2545486171289 is a wasteful number, since it uses less digits than its factorization.

2545486171289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13470666.

The product of its digits is 38707200, while the sum is 62.

The spelling of 2545486171289 in words is "two trillion, five hundred forty-five billion, four hundred eighty-six million, one hundred seventy-one thousand, two hundred eighty-nine".