68304440386 has 64 divisors (see below), whose sum is σ = 133720651008. Its totient is φ = 25393471488.

The previous prime is 68304440383. The next prime is 68304440441.

68304440386 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (68304440383) 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 31 ways as a sum of consecutive naturals, for example, 2065861 + ... + 2098663.

It is an arithmetic number, because the mean of its divisors is an integer number (2089385172).

Almost surely, 2^68304440386 is an apocalyptic number.

68304440386 is a deficient number, since it is larger than the sum of its proper divisors (65416210622).

68304440386 is a wasteful number, since it uses less digits than its factorization.

68304440386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33515.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 68304440386 in words is "sixty-eight billion, three hundred four million, four hundred forty thousand, three hundred eighty-six".