68538036 has 48 divisors (see below), whose sum is σ = 183967616. Its totient is φ = 19453824.

The previous prime is 68538031. The next prime is 68538037. The reversal of 68538036 is 63083586.

It is a junction number, because it is equal to n+sod(n) for n = 68537985 and 68538003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68538031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10590 + ... + 15786.

Almost surely, 2^68538036 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 68538036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91983808).

68538036 is an abundant number, since it is smaller than the sum of its proper divisors (115429580).

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

68538036 is a wasteful number, since it uses less digits than its factorization.

68538036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368 (or 5366 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 68538036 is about 8278.7701985259. The cubic root of 68538036 is about 409.2391919111.

The spelling of 68538036 in words is "sixty-eight million, five hundred thirty-eight thousand, thirty-six".