312285690540438 has 16 divisors (see below), whose sum is σ = 624572692796016. Its totient is φ = 104095011560960.

The previous prime is 312285690540401. The next prime is 312285690540449. The reversal of 312285690540438 is 834045096582213.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 51546231 + ... + 57285122.

It is an arithmetic number, because the mean of its divisors is an integer number (39035793299751).

Almost surely, 2^{312285690540438} is an apocalyptic number.

312285690540438 is an abundant number, since it is smaller than the sum of its proper divisors (312287002255578).

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

312285690540438 is a wasteful number, since it uses less digits than its factorization.

312285690540438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109309599.

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 312285690540438 in words is "three hundred twelve trillion, two hundred eighty-five billion, six hundred ninety million, five hundred forty thousand, four hundred thirty-eight".