68775837696 has 380 divisors, whose sum is σ = 213154122720. Its totient is φ = 22083010560.

The previous prime is 68775837659. The next prime is 68775837761. The reversal of 68775837696 is 69673857786.

It is a Harshad number since it is a multiple of its sum of digits (72).

Its product of digits (640120320) is a multiple of the sum of its prime factors (168).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 870580185 + ... + 870580263.

Almost surely, 2^68775837696 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 68775837696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106577061360).

68775837696 is an abundant number, since it is smaller than the sum of its proper divisors (144378285024).

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

68775837696 is an frugal number, since it uses more digits than its factorization.

68775837696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 125 counting only the distinct ones).

The product of its digits is 640120320, while the sum is 72.

The spelling of 68775837696 in words is "sixty-eight billion, seven hundred seventy-five million, eight hundred thirty-seven thousand, six hundred ninety-six".