305405424616513 has 16 divisors (see below), whose sum is σ = 332463101685120. Its totient is φ = 278860074518016.

The previous prime is 305405424616499. The next prime is 305405424616549. The reversal of 305405424616513 is 315616424504503.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-305405424616513 is a prime.

It is a super-2 number, since 2×305405424616513² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305405424616573) 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, 61096333 + ... + 65905786.

It is an arithmetic number, because the mean of its divisors is an integer number (20778943855320).

Almost surely, 2^{305405424616513} is an apocalyptic number.

It is an amenable number.

305405424616513 is a deficient number, since it is larger than the sum of its proper divisors (27057677068607).

305405424616513 is a wasteful number, since it uses less digits than its factorization.

305405424616513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127004136.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 305405424616513 in words is "three hundred five trillion, four hundred five billion, four hundred twenty-four million, six hundred sixteen thousand, five hundred thirteen".