61803727061 has 8 divisors (see below), whose sum is σ = 62786033280. Its totient is φ = 60826420512.

The previous prime is 61803727043. The next prime is 61803727067. The reversal of 61803727061 is 16072730816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61803727061 - 2⁶ = 61803726997 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 1224995 + ... + 1274448.

It is an arithmetic number, because the mean of its divisors is an integer number (7848254160).

Almost surely, 2^61803727061 is an apocalyptic number.

It is an amenable number.

61803727061 is a deficient number, since it is larger than the sum of its proper divisors (982306219).

61803727061 is a wasteful number, since it uses less digits than its factorization.

61803727061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499835.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 61803727061 in words is "sixty-one billion, eight hundred three million, seven hundred twenty-seven thousand, sixty-one".