68538594738 has 16 divisors (see below), whose sum is σ = 137082310560. Its totient is φ = 22845344736.

The previous prime is 68538594737. The next prime is 68538594793. The reversal of 68538594738 is 83749583586.

It is not an unprimeable number, because it can be changed into a prime (68538594737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26848 + ... + 371211.

It is an arithmetic number, because the mean of its divisors is an integer number (8567644410).

Almost surely, 2^68538594738 is an apocalyptic number.

68538594738 is an abundant number, since it is smaller than the sum of its proper divisors (68543715822).

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

68538594738 is a wasteful number, since it uses less digits than its factorization.

68538594738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426761.

The product of its digits is 174182400, while the sum is 66.

The spelling of 68538594738 in words is "sixty-eight billion, five hundred thirty-eight million, five hundred ninety-four thousand, seven hundred thirty-eight".