68489007804 has 144 divisors (see below), whose sum is σ = 210853214208. Its totient is φ = 18319175424.

The previous prime is 68489007793. The next prime is 68489007809. The reversal of 68489007804 is 40870098486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68489007809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146704 + ... + 398120.

It is an arithmetic number, because the mean of its divisors is an integer number (1464258432).

Almost surely, 2^68489007804 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 68489007804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105426607104).

68489007804 is an abundant number, since it is smaller than the sum of its proper divisors (142364206404).

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

68489007804 is a wasteful number, since it uses less digits than its factorization.

68489007804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251504 (or 251499 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 68489007804 in words is "sixty-eight billion, four hundred eighty-nine million, seven thousand, eight hundred four".