306213421324544 has 18 divisors (see below), whose sum is σ = 611230696472550. Its totient is φ = 153106710662144.

The previous prime is 306213421324501. The next prime is 306213421324589. The reversal of 306213421324544 is 445423124312603.

It can be written as a sum of positive squares in only one way, i.e., 172058837094400 + 134154584230144 = 13117120^2 + 11582512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 306213421324495 and 306213421324504.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 598073088269 + ... + 598073088780.

Almost surely, 2^{306213421324544} is an apocalyptic number.

It is an amenable number.

306213421324544 is a deficient number, since it is larger than the sum of its proper divisors (305017275148006).

306213421324544 is an equidigital number, since it uses as much as digits as its factorization.

306213421324544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196146177065 (or 1196146177051 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 306213421324544 in words is "three hundred six trillion, two hundred thirteen billion, four hundred twenty-one million, three hundred twenty-four thousand, five hundred forty-four".