68180037736 has 32 divisors (see below), whose sum is σ = 136511769600. Its totient is φ = 31852739520.

The previous prime is 68180037727. The next prime is 68180037743. The reversal of 68180037736 is 63773008186.

It is a self number, because there is not a number n which added to its sum of digits gives 68180037736.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4732800 + ... + 4747183.

It is an arithmetic number, because the mean of its divisors is an integer number (4265992800).

Almost surely, 2^68180037736 is an apocalyptic number.

It is an amenable number.

68180037736 is an abundant number, since it is smaller than the sum of its proper divisors (68331731864).

68180037736 is a wasteful number, since it uses less digits than its factorization.

68180037736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480049 (or 9480045 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 68180037736 in words is "sixty-eight billion, one hundred eighty million, thirty-seven thousand, seven hundred thirty-six".