1080809508249 has 64 divisors (see below), whose sum is σ = 1735443705600. Its totient is φ = 662143942656.

The previous prime is 1080809508239. The next prime is 1080809508271. The reversal of 1080809508249 is 9428059080801.

1080809508249 is a `hidden beast` number, since 10 + 8 + 0 + 80 + 9 + 508 + 2 + 49 = 666.

It is not a de Polignac number, because 1080809508249 - 2¹¹ = 1080809506201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1080809508195 and 1080809508204.

It is not an unprimeable number, because it can be changed into a prime (1080809508239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65380417 + ... + 65396945.

It is an arithmetic number, because the mean of its divisors is an integer number (27116307900).

Almost surely, 2^{1080809508249} is an apocalyptic number.

It is an amenable number.

1080809508249 is a deficient number, since it is larger than the sum of its proper divisors (654634197351).

1080809508249 is a wasteful number, since it uses less digits than its factorization.

1080809508249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19911 (or 19905 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 1080809508249 in words is "one trillion, eighty billion, eight hundred nine million, five hundred eight thousand, two hundred forty-nine".