68081638048080 has 40 divisors (see below), whose sum is σ = 211053077949792. Its totient is φ = 18155103479424.

The previous prime is 68081638048013. The next prime is 68081638048087. The reversal of 68081638048080 is 8084083618086.

68081638048080 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68081638048087) 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, 141836745694 + ... + 141836746173.

Almost surely, 2^{68081638048080} is an apocalyptic number.

68081638048080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68081638048080 is an abundant number, since it is smaller than the sum of its proper divisors (142971439901712).

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

68081638048080 is a wasteful number, since it uses less digits than its factorization.

68081638048080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283673491883 (or 283673491877 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 60.

The spelling of 68081638048080 in words is "sixty-eight trillion, eighty-one billion, six hundred thirty-eight million, forty-eight thousand, eighty".