312205465452 has 24 divisors (see below), whose sum is σ = 728488882800. Its totient is φ = 104067136576.

The previous prime is 312205465361. The next prime is 312205465471. The reversal of 312205465452 is 254564502213.

It is a self number, because there is not a number n which added to its sum of digits gives 312205465452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313374 + ... + 1532762.

It is an arithmetic number, because the mean of its divisors is an integer number (30353703450).

Almost surely, 2^312205465452 is an apocalyptic number.

It is an amenable number.

312205465452 is an abundant number, since it is smaller than the sum of its proper divisors (416283417348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312205465452 is a wasteful number, since it uses less digits than its factorization.

312205465452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337985 (or 337983 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 312205465452 its reverse (254564502213), we get a palindrome (566769967665).

The spelling of 312205465452 in words is "three hundred twelve billion, two hundred five million, four hundred sixty-five thousand, four hundred fifty-two".