68338238836 has 48 divisors (see below), whose sum is σ = 140575050112. Its totient is φ = 28454716800.

The previous prime is 68338238831. The next prime is 68338238929. The reversal of 68338238836 is 63883283386.

It is a happy number.

It is a super-2 number, since 2×68338238836² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68338238831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668146 + ... + 763606.

Almost surely, 2^68338238836 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 68338238836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70287525056).

68338238836 is an abundant number, since it is smaller than the sum of its proper divisors (72236811276).

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

68338238836 is a wasteful number, since it uses less digits than its factorization.

68338238836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96200 (or 96198 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 58.

The spelling of 68338238836 in words is "sixty-eight billion, three hundred thirty-eight million, two hundred thirty-eight thousand, eight hundred thirty-six".