1305078934568 has 32 divisors (see below), whose sum is σ = 2455199285760. Its totient is φ = 650359654080.

The previous prime is 1305078934567. The next prime is 1305078934589. The reversal of 1305078934568 is 8654398705031.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1305078934567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23052905 + ... + 23109447.

It is an arithmetic number, because the mean of its divisors is an integer number (76724977680).

Almost surely, 2^{1305078934568} is an apocalyptic number.

It is an amenable number.

1305078934568 is a deficient number, since it is larger than the sum of its proper divisors (1150120351192).

1305078934568 is a wasteful number, since it uses less digits than its factorization.

1305078934568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66137 (or 66133 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 1305078934568 in words is "one trillion, three hundred five billion, seventy-eight million, nine hundred thirty-four thousand, five hundred sixty-eight".