68111836 has 72 divisors (see below), whose sum is σ = 140132160. Its totient is φ = 28748160.

The previous prime is 68111833. The next prime is 68111861. The reversal of 68111836 is 63811186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68111833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1449165 + ... + 1449211.

It is an arithmetic number, because the mean of its divisors is an integer number (1946280).

Almost surely, 2^68111836 is an apocalyptic number.

It is an amenable number.

68111836 is an abundant number, since it is smaller than the sum of its proper divisors (72020324).

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

68111836 is a wasteful number, since it uses less digits than its factorization.

68111836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 122 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 68111836 is about 8252.9895189561. The cubic root of 68111836 is about 408.3891503687.

The spelling of 68111836 in words is "sixty-eight million, one hundred eleven thousand, eight hundred thirty-six".