68910300880 has 20 divisors (see below), whose sum is σ = 160216449732. Its totient is φ = 27564120320.

The previous prime is 68910300857. The next prime is 68910300883. The reversal of 68910300880 is 8800301986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13476423744 + 55433877136 = 116088^2 + 235444^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910300883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430689301 + ... + 430689460.

Almost surely, 2^68910300880 is an apocalyptic number.

It is an amenable number.

68910300880 is an abundant number, since it is smaller than the sum of its proper divisors (91306148852).

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

68910300880 is a wasteful number, since it uses less digits than its factorization.

68910300880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861378774 (or 861378768 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 68910300880 in words is "sixty-eight billion, nine hundred ten million, three hundred thousand, eight hundred eighty".