345881312828 has 24 divisors (see below), whose sum is σ = 607202668800. Its totient is φ = 172395030528.

The previous prime is 345881312807. The next prime is 345881312863. The reversal of 345881312828 is 828213188543.

It is a self number, because there is not a number n which added to its sum of digits gives 345881312828.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8173388 + ... + 8215596.

It is an arithmetic number, because the mean of its divisors is an integer number (25300111200).

Almost surely, 2^345881312828 is an apocalyptic number.

It is an amenable number.

345881312828 is a deficient number, since it is larger than the sum of its proper divisors (261321355972).

345881312828 is a wasteful number, since it uses less digits than its factorization.

345881312828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48629 (or 48627 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 53.

The spelling of 345881312828 in words is "three hundred forty-five billion, eight hundred eighty-one million, three hundred twelve thousand, eight hundred twenty-eight".