68686755480732 has 12 divisors (see below), whose sum is σ = 160269096121736. Its totient is φ = 22895585160240.

The previous prime is 68686755480713. The next prime is 68686755480773. The reversal of 68686755480732 is 23708455768686.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861948145019 + ... + 2861948145042.

Almost surely, 2^{68686755480732} is an apocalyptic number.

It is an amenable number.

68686755480732 is an abundant number, since it is smaller than the sum of its proper divisors (91582340641004).

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

68686755480732 is a wasteful number, since it uses less digits than its factorization.

68686755480732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723896290068 (or 5723896290066 counting only the distinct ones).

The product of its (nonzero) digits is 3251404800, while the sum is 75.

The spelling of 68686755480732 in words is "sixty-eight trillion, six hundred eighty-six billion, seven hundred fifty-five million, four hundred eighty thousand, seven hundred thirty-two".