68551727528680 has 32 divisors (see below), whose sum is σ = 168263331207840. Its totient is φ = 24927900919360.

The previous prime is 68551727528677. The next prime is 68551727528689. The reversal of 68551727528680 is 8682572715586.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68551727528689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77899689934 + ... + 77899690813.

It is an arithmetic number, because the mean of its divisors is an integer number (5258229100245).

Almost surely, 2^{68551727528680} is an apocalyptic number.

It is an amenable number.

68551727528680 is an abundant number, since it is smaller than the sum of its proper divisors (99711603679160).

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

68551727528680 is a wasteful number, since it uses less digits than its factorization.

68551727528680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155799380769 (or 155799380765 counting only the distinct ones).

The product of its (nonzero) digits is 451584000, while the sum is 70.

The spelling of 68551727528680 in words is "sixty-eight trillion, five hundred fifty-one billion, seven hundred twenty-seven million, five hundred twenty-eight thousand, six hundred eighty".