345217312707 has 4 divisors (see below), whose sum is σ = 460289750280. Its totient is φ = 230144875136.

The previous prime is 345217312703. The next prime is 345217312709. The reversal of 345217312707 is 707213712543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345217312707 - 2² = 345217312703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345217312703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57536218782 + ... + 57536218787.

It is an arithmetic number, because the mean of its divisors is an integer number (115072437570).

Almost surely, 2^345217312707 is an apocalyptic number.

345217312707 is a deficient number, since it is larger than the sum of its proper divisors (115072437573).

345217312707 is a wasteful number, since it uses less digits than its factorization.

345217312707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115072437572.

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 345217312707 in words is "three hundred forty-five billion, two hundred seventeen million, three hundred twelve thousand, seven hundred seven".