312572743009 has 4 divisors (see below), whose sum is σ = 312589870740. Its totient is φ = 312555615280.

The previous prime is 312572742991. The next prime is 312572743051. The reversal of 312572743009 is 900347275213.

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 284758842384 + 27813900625 = 533628^2 + 166775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312572743009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312572746009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8536462 + ... + 8572999.

It is an arithmetic number, because the mean of its divisors is an integer number (78147467685).

Almost surely, 2^312572743009 is an apocalyptic number.

It is an amenable number.

312572743009 is a deficient number, since it is larger than the sum of its proper divisors (17127731).

312572743009 is a wasteful number, since it uses less digits than its factorization.

312572743009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17127730.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 312572743009 in words is "three hundred twelve billion, five hundred seventy-two million, seven hundred forty-three thousand, nine".