345706445427 has 16 divisors (see below), whose sum is σ = 526897505280. Its totient is φ = 197506516032.

The previous prime is 345706445423. The next prime is 345706445429. The reversal of 345706445427 is 724544607543.

It is not a de Polignac number, because 345706445427 - 2² = 345706445423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345706445427.

It is not an unprimeable number, because it can be changed into a prime (345706445423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1561402 + ... + 1769007.

It is an arithmetic number, because the mean of its divisors is an integer number (32931094080).

Almost surely, 2^345706445427 is an apocalyptic number.

345706445427 is a deficient number, since it is larger than the sum of its proper divisors (181191059853).

345706445427 is a wasteful number, since it uses less digits than its factorization.

345706445427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335362.

The product of its (nonzero) digits is 11289600, while the sum is 51.

The spelling of 345706445427 in words is "three hundred forty-five billion, seven hundred six million, four hundred forty-five thousand, four hundred twenty-seven".