306681006242 has 8 divisors (see below), whose sum is σ = 495407779356. Its totient is φ = 141545079792.

The previous prime is 306681006211. The next prime is 306681006251. The reversal of 306681006242 is 242600186603.

It can be written as a sum of positive squares in 2 ways, for example, as 305345761561 + 1335244681 = 552581^2 + 36541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 306681006196 and 306681006205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5897711633 + ... + 5897711684.

Almost surely, 2^306681006242 is an apocalyptic number.

306681006242 is a deficient number, since it is larger than the sum of its proper divisors (188726773114).

306681006242 is a wasteful number, since it uses less digits than its factorization.

306681006242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11795423332.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 306681006242 in words is "three hundred six billion, six hundred eighty-one million, six thousand, two hundred forty-two".