345728813857 has 12 divisors (see below), whose sum is σ = 413044636480. Its totient is φ = 283454676648.

The previous prime is 345728813849. The next prime is 345728813869. The reversal of 345728813857 is 758318827543.

It is a happy number.

It is not a de Polignac number, because 345728813857 - 2³ = 345728813849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345728813795 and 345728813804.

It is not an unprimeable number, because it can be changed into a prime (345728819857) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46678557 + ... + 46685962.

Almost surely, 2^345728813857 is an apocalyptic number.

It is an amenable number.

345728813857 is a deficient number, since it is larger than the sum of its proper divisors (67315822623).

345728813857 is an equidigital number, since it uses as much as digits as its factorization.

345728813857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93364572 (or 93364549 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 61.

The spelling of 345728813857 in words is "three hundred forty-five billion, seven hundred twenty-eight million, eight hundred thirteen thousand, eight hundred fifty-seven".