68561180384 has 48 divisors (see below), whose sum is σ = 136419034752. Its totient is φ = 33915708288.

The previous prime is 68561180339. The next prime is 68561180399. The reversal of 68561180384 is 48308116586.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3692147 + ... + 3710669.

It is an arithmetic number, because the mean of its divisors is an integer number (2842063224).

Almost surely, 2^68561180384 is an apocalyptic number.

It is an amenable number.

68561180384 is a deficient number, since it is larger than the sum of its proper divisors (67857854368).

68561180384 is a wasteful number, since it uses less digits than its factorization.

68561180384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19759 (or 19751 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 68561180384 in words is "sixty-eight billion, five hundred sixty-one million, one hundred eighty thousand, three hundred eighty-four".