68493109104 has 120 divisors (see below), whose sum is σ = 220539976800. Its totient is φ = 19438078464.

The previous prime is 68493109079. The next prime is 68493109127. The reversal of 68493109104 is 40190139486.

68493109104 is a `hidden beast` number, since 68 + 493 + 10 + 91 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68493109104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77827 + ... + 378210.

It is an arithmetic number, because the mean of its divisors is an integer number (1837833140).

Almost surely, 2^68493109104 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 68493109104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110269988400).

68493109104 is an abundant number, since it is smaller than the sum of its proper divisors (152046867696).

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

68493109104 is a wasteful number, since it uses less digits than its factorization.

68493109104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456207 (or 456198 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 68493109104 in words is "sixty-eight billion, four hundred ninety-three million, one hundred nine thousand, one hundred four".