312804065409 has 32 divisors (see below), whose sum is σ = 476001792000. Its totient is φ = 181019126400.

The previous prime is 312804065369. The next prime is 312804065423. The reversal of 312804065409 is 904560408213.

It is not a de Polignac number, because 312804065409 - 2¹³ = 312804057217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312804065449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2395909 + ... + 2523090.

It is an arithmetic number, because the mean of its divisors is an integer number (14875056000).

Almost surely, 2^312804065409 is an apocalyptic number.

It is an amenable number.

312804065409 is a deficient number, since it is larger than the sum of its proper divisors (163197726591).

312804065409 is a wasteful number, since it uses less digits than its factorization.

312804065409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919101.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 312804065409 in words is "three hundred twelve billion, eight hundred four million, sixty-five thousand, four hundred nine".