68823172416 has 112 divisors (see below), whose sum is σ = 188321208320. Its totient is φ = 22159388160.

The previous prime is 68823172409. The next prime is 68823172421. The reversal of 68823172416 is 61427132886.

It is a super-2 number, since 2×68823172416² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 3245175 + ... + 3266313.

It is an arithmetic number, because the mean of its divisors is an integer number (1681439360).

Almost surely, 2^68823172416 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 68823172416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94160604160).

68823172416 is an abundant number, since it is smaller than the sum of its proper divisors (119498035904).

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

68823172416 is a wasteful number, since it uses less digits than its factorization.

68823172416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21732 (or 21722 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The spelling of 68823172416 in words is "sixty-eight billion, eight hundred twenty-three million, one hundred seventy-two thousand, four hundred sixteen".