68442549084 has 432 divisors, whose sum is σ = 229031362560. Its totient is φ = 17054634240.

The previous prime is 68442549031. The next prime is 68442549089. The reversal of 68442549084 is 48094524486.

It is a happy number.

68442549084 is a `hidden beast` number, since 68 + 442 + 54 + 90 + 8 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68442549084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68442549089) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 30567237 + ... + 30569475.

Almost surely, 2^68442549084 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 68442549084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114515681280).

68442549084 is an abundant number, since it is smaller than the sum of its proper divisors (160588813476).

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

68442549084 is a wasteful number, since it uses less digits than its factorization.

68442549084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 68442549084 in words is "sixty-eight billion, four hundred forty-two million, five hundred forty-nine thousand, eighty-four".