809304948249 has 32 divisors (see below), whose sum is σ = 1331219128320. Its totient is φ = 427099455552.

The previous prime is 809304948227. The next prime is 809304948313. The reversal of 809304948249 is 942849403908.

It is not a de Polignac number, because 809304948249 - 2³⁶ = 740585471513 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 809304948192 and 809304948201.

It is not an unprimeable number, because it can be changed into a prime (809304948209) 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 in 31 ways as a sum of consecutive naturals, for example, 28875297 + ... + 28903310.

It is an arithmetic number, because the mean of its divisors is an integer number (41600597760).

Almost surely, 2^809304948249 is an apocalyptic number.

It is an amenable number.

809304948249 is a deficient number, since it is larger than the sum of its proper divisors (521914180071).

809304948249 is a wasteful number, since it uses less digits than its factorization.

809304948249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57778669.

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 809304948249 in words is "eight hundred nine billion, three hundred four million, nine hundred forty-eight thousand, two hundred forty-nine".