68407663080 has 128 divisors (see below), whose sum is σ = 218251958400. Its totient is φ = 17103716352.

The previous prime is 68407663073. The next prime is 68407663091. The reversal of 68407663080 is 8036670486.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66504 + ... + 375816.

It is an arithmetic number, because the mean of its divisors is an integer number (1705093425).

Almost surely, 2^68407663080 is an apocalyptic number.

68407663080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68407663080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109125979200).

68407663080 is an abundant number, since it is smaller than the sum of its proper divisors (149844295320).

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

68407663080 is a wasteful number, since it uses less digits than its factorization.

68407663080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309443 (or 309439 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 68407663080 in words is "sixty-eight billion, four hundred seven million, six hundred sixty-three thousand, eighty".