68798694784 has 64 divisors (see below), whose sum is σ = 144328878000. Its totient is φ = 32576366592.

The previous prime is 68798694761. The next prime is 68798694851. The reversal of 68798694784 is 48749689786.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a self number, because there is not a number n which added to its sum of digits gives 68798694784.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10631902 + ... + 10638370.

Almost surely, 2^68798694784 is an apocalyptic number.

68798694784 is a gapful number since it is divisible by the number (64) 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 68798694784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72164439000).

68798694784 is an abundant number, since it is smaller than the sum of its proper divisors (75530183216).

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

68798694784 is a wasteful number, since it uses less digits than its factorization.

68798694784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10875 (or 10863 counting only the distinct ones).

The product of its digits is 1170505728, while the sum is 76.

The spelling of 68798694784 in words is "sixty-eight billion, seven hundred ninety-eight million, six hundred ninety-four thousand, seven hundred eighty-four".