68811100 has 18 divisors (see below), whose sum is σ = 149320304. Its totient is φ = 27524400.

The previous prime is 68811097. The next prime is 68811131. The reversal of 68811100 is 111886.

It is a happy number.

68811100 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

68811100 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 343956 + ... + 344155.

Almost surely, 2^68811100 is an apocalyptic number.

It is an amenable number.

68811100 is an abundant number, since it is smaller than the sum of its proper divisors (80509204).

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

68811100 is a wasteful number, since it uses less digits than its factorization.

68811100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688125 (or 688118 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 68811100 is about 8295.2456262609. The cubic root of 68811100 is about 409.7819582261.

Adding to 68811100 its reverse (111886), we get a palindrome (68922986).

The spelling of 68811100 in words is "sixty-eight million, eight hundred eleven thousand, one hundred".