60440140686 has 8 divisors (see below), whose sum is σ = 120880281384. Its totient is φ = 20146713560.

The previous prime is 60440140679. The next prime is 60440140687. The reversal of 60440140686 is 68604104406.

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

60440140686 is an admirable number.

It is a super-2 number, since 2×60440140686² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60440140687) 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, 5036678385 + ... + 5036678396.

It is an arithmetic number, because the mean of its divisors is an integer number (15110035173).

Almost surely, 2^60440140686 is an apocalyptic number.

60440140686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

60440140686 is a wasteful number, since it uses less digits than its factorization.

60440140686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073356786.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 60440140686 in words is "sixty billion, four hundred forty million, one hundred forty thousand, six hundred eighty-six".