312544299478 has 24 divisors (see below), whose sum is σ = 495592738200. Its totient is φ = 147798139104.

The previous prime is 312544299439. The next prime is 312544299479. The reversal of 312544299478 is 874992445213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312544299479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1565448 + ... + 1753771.

It is an arithmetic number, because the mean of its divisors is an integer number (20649697425).

Almost surely, 2^312544299478 is an apocalyptic number.

312544299478 is a deficient number, since it is larger than the sum of its proper divisors (183048438722).

312544299478 is a wasteful number, since it uses less digits than its factorization.

312544299478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319356 (or 3319333 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 58.

The spelling of 312544299478 in words is "three hundred twelve billion, five hundred forty-four million, two hundred ninety-nine thousand, four hundred seventy-eight".