312543886746 has 64 divisors (see below), whose sum is σ = 771116145408. Its totient is φ = 82238727168.

The previous prime is 312543886723. The next prime is 312543886763. The reversal of 312543886746 is 647688345213.

It is a happy number.

It is a super-2 number, since 2×312543886746² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 424581 + ... + 897416.

It is an arithmetic number, because the mean of its divisors is an integer number (12048689772).

Almost surely, 2^312543886746 is an apocalyptic number.

312543886746 is an abundant number, since it is smaller than the sum of its proper divisors (458572258662).

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

312543886746 is a wasteful number, since it uses less digits than its factorization.

312543886746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322455.

The product of its digits is 23224320, while the sum is 57.

The spelling of 312543886746 in words is "three hundred twelve billion, five hundred forty-three million, eight hundred eighty-six thousand, seven hundred forty-six".