345728813872 has 40 divisors (see below), whose sum is σ = 728813380736. Its totient is φ = 157922113536.

The previous prime is 345728813869. The next prime is 345728813891. The reversal of 345728813872 is 278318827543.

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, 8547648 + ... + 8587999.

Almost surely, 2^345728813872 is an apocalyptic number.

It is an amenable number.

345728813872 is an abundant number, since it is smaller than the sum of its proper divisors (383084566864).

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

345728813872 is a wasteful number, since it uses less digits than its factorization.

345728813872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17135765 (or 17135759 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 58.

The spelling of 345728813872 in words is "three hundred forty-five billion, seven hundred twenty-eight million, eight hundred thirteen thousand, eight hundred seventy-two".