306381984850 has 24 divisors (see below), whose sum is σ = 571291652628. Its totient is φ = 122247168000.

The previous prime is 306381984827. The next prime is 306381984859. The reversal of 306381984850 is 58489183603.

It can be written as a sum of positive squares in 6 ways, for example, as 276794888769 + 29587096081 = 526113^2 + 172009^2 .

It is a junction number, because it is equal to n+sod(n) for n = 306381984791 and 306381984800.

It is not an unprimeable number, because it can be changed into a prime (306381984859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7620399 + ... + 7660498.

Almost surely, 2^306381984850 is an apocalyptic number.

306381984850 is a deficient number, since it is larger than the sum of its proper divisors (264909667778).

306381984850 is a wasteful number, since it uses less digits than its factorization.

306381984850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15281310 (or 15281305 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 306381984850 in words is "three hundred six billion, three hundred eighty-one million, nine hundred eighty-four thousand, eight hundred fifty".