61803727068 has 12 divisors (see below), whose sum is σ = 144208696520. Its totient is φ = 20601242352.

The previous prime is 61803727067. The next prime is 61803727109. The reversal of 61803727068 is 86072730816.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61803727067) 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 3 ways as a sum of consecutive naturals, for example, 2575155283 + ... + 2575155306.

Almost surely, 2^61803727068 is an apocalyptic number.

It is an amenable number.

61803727068 is an abundant number, since it is smaller than the sum of its proper divisors (82404969452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61803727068 is a wasteful number, since it uses less digits than its factorization.

61803727068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150310596 (or 5150310594 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 61803727068 in words is "sixty-one billion, eight hundred three million, seven hundred twenty-seven thousand, sixty-eight".