344143196505 has 32 divisors (see below), whose sum is σ = 612410774400. Its totient is φ = 183362844096.

The previous prime is 344143196471. The next prime is 344143196513. The reversal of 344143196505 is 505691341443.

344143196505 is a `hidden beast` number, since 3 + 44 + 14 + 3 + 1 + 96 + 505 = 666.

It is not a de Polignac number, because 344143196505 - 2¹⁰ = 344143195481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1113274 + ... + 1388403.

It is an arithmetic number, because the mean of its divisors is an integer number (19137836700).

Almost surely, 2^344143196505 is an apocalyptic number.

It is an amenable number.

344143196505 is a deficient number, since it is larger than the sum of its proper divisors (268267577895).

344143196505 is a wasteful number, since it uses less digits than its factorization.

344143196505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502710 (or 2502704 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 344143196505 in words is "three hundred forty-four billion, one hundred forty-three million, one hundred ninety-six thousand, five hundred five".