309344144805 has 24 divisors (see below), whose sum is σ = 547604957952. Its totient is φ = 161473254624.

The previous prime is 309344144789. The next prime is 309344144843. The reversal of 309344144805 is 508441443903.

309344144805 is a `hidden beast` number, since 3 + 0 + 93 + 441 + 44 + 80 + 5 = 666.

It is not a de Polignac number, because 309344144805 - 2⁴ = 309344144789 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73128889 + ... + 73133118.

It is an arithmetic number, because the mean of its divisors is an integer number (22816873248).

Almost surely, 2^309344144805 is an apocalyptic number.

It is an amenable number.

309344144805 is a deficient number, since it is larger than the sum of its proper divisors (238260813147).

309344144805 is a wasteful number, since it uses less digits than its factorization.

309344144805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146262065 (or 146262062 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 309344144805 in words is "three hundred nine billion, three hundred forty-four million, one hundred forty-four thousand, eight hundred five".