67599945798 has 96 divisors (see below), whose sum is σ = 169935134208. Its totient is φ = 17548375680.

The previous prime is 67599945781. The next prime is 67599945799. The reversal of 67599945798 is 89754999576.

67599945798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67599945799) 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, 13785015 + ... + 13789917.

It is an arithmetic number, because the mean of its divisors is an integer number (1770157648).

Almost surely, 2^67599945798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67599945798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84967567104).

67599945798 is an abundant number, since it is smaller than the sum of its proper divisors (102335188410).

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

67599945798 is a wasteful number, since it uses less digits than its factorization.

67599945798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650 (or 7639 counting only the distinct ones).

The product of its digits is 1543147200, while the sum is 78.

The spelling of 67599945798 in words is "sixty-seven billion, five hundred ninety-nine million, nine hundred forty-five thousand, seven hundred ninety-eight".