68880820115808 has 36 divisors (see below), whose sum is σ = 195879832205148. Its totient is φ = 22960273371840.

The previous prime is 68880820115803. The next prime is 68880820115819. The reversal of 68880820115808 is 80851102808886.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68880820115803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119584756858 + ... + 119584757433.

It is an arithmetic number, because the mean of its divisors is an integer number (5441106450143).

Almost surely, 2^{68880820115808} is an apocalyptic number.

It is an amenable number.

68880820115808 is an abundant number, since it is smaller than the sum of its proper divisors (126999012089340).

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

68880820115808 is a wasteful number, since it uses less digits than its factorization.

68880820115808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239169514307 (or 239169514296 counting only the distinct ones).

The product of its (nonzero) digits is 15728640, while the sum is 63.

The spelling of 68880820115808 in words is "sixty-eight trillion, eight hundred eighty billion, eight hundred twenty million, one hundred fifteen thousand, eight hundred eight".