345217676685 has 32 divisors (see below), whose sum is σ = 635275944192. Its totient is φ = 156808604160.

The previous prime is 345217676659. The next prime is 345217676719. The reversal of 345217676685 is 586676712543.

It is not a de Polignac number, because 345217676685 - 2¹⁰ = 345217675661 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 10454176 + ... + 10487145.

It is an arithmetic number, because the mean of its divisors is an integer number (19852373256).

Almost surely, 2^345217676685 is an apocalyptic number.

345217676685 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345217676685 is a deficient number, since it is larger than the sum of its proper divisors (290058267507).

345217676685 is a wasteful number, since it uses less digits than its factorization.

345217676685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20941493.

The product of its digits is 50803200, while the sum is 60.

The spelling of 345217676685 in words is "three hundred forty-five billion, two hundred seventeen million, six hundred seventy-six thousand, six hundred eighty-five".