345025219999 has 4 divisors (see below), whose sum is σ = 345935577160. Its totient is φ = 344114862840.

The previous prime is 345025219961. The next prime is 345025220027. The reversal of 345025219999 is 999912520543.

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 345025219999 - 2⁷ = 345025219871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345025213999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455178012 + ... + 455178769.

It is an arithmetic number, because the mean of its divisors is an integer number (86483894290).

Almost surely, 2^345025219999 is an apocalyptic number.

345025219999 is a deficient number, since it is larger than the sum of its proper divisors (910357161).

345025219999 is an equidigital number, since it uses as much as digits as its factorization.

345025219999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910357160.

The product of its (nonzero) digits is 7873200, while the sum is 58.

The spelling of 345025219999 in words is "three hundred forty-five billion, twenty-five million, two hundred nineteen thousand, nine hundred ninety-nine".