312543353458 has 32 divisors (see below), whose sum is σ = 564263706240. Its totient is φ = 126835269120.

The previous prime is 312543353417. The next prime is 312543353467. The reversal of 312543353458 is 854353345213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259938 + ... + 832258.

It is an arithmetic number, because the mean of its divisors is an integer number (17633240820).

Almost surely, 2^312543353458 is an apocalyptic number.

312543353458 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

312543353458 is a deficient number, since it is larger than the sum of its proper divisors (251720352782).

312543353458 is a wasteful number, since it uses less digits than its factorization.

312543353458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574402.

The product of its digits is 2592000, while the sum is 46.

The spelling of 312543353458 in words is "three hundred twelve billion, five hundred forty-three million, three hundred fifty-three thousand, four hundred fifty-eight".