68881100 has 36 divisors (see below), whose sum is σ = 149995608. Its totient is φ = 27456000.

The previous prime is 68881049. The next prime is 68881103. The reversal of 68881100 is 118886.

It is a happy number.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68881103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32060 + ... + 34140.

Almost surely, 2^68881100 is an apocalyptic number.

It is an amenable number.

68881100 is an abundant number, since it is smaller than the sum of its proper divisors (81114508).

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

68881100 is a wasteful number, since it uses less digits than its factorization.

68881100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 68881100 is about 8299.4638381042. The cubic root of 68881100 is about 409.9208651553.

Adding to 68881100 its reverse (118886), we get a palindrome (68999986).

The spelling of 68881100 in words is "sixty-eight million, eight hundred eighty-one thousand, one hundred".