68507764948 has 108 divisors (see below), whose sum is σ = 149006964960. Its totient is φ = 27427476384.

The previous prime is 68507764939. The next prime is 68507765071. The reversal of 68507764948 is 84946770586.

It is a self number, because there is not a number n which added to its sum of digits gives 68507764948.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 8331183 + ... + 8339401.

It is an arithmetic number, because the mean of its divisors is an integer number (1379694120).

Almost surely, 2^68507764948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68507764948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74503482480).

68507764948 is an abundant number, since it is smaller than the sum of its proper divisors (80499200012).

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

68507764948 is a wasteful number, since it uses less digits than its factorization.

68507764948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346 (or 8294 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 68507764948 in words is "sixty-eight billion, five hundred seven million, seven hundred sixty-four thousand, nine hundred forty-eight".