68103878100 has 72 divisors (see below), whose sum is σ = 198960390720. Its totient is φ = 17984705280.

The previous prime is 68103878093. The next prime is 68103878111. The reversal of 68103878100 is 187830186.

It is a super-2 number, since 2×68103878100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1071105 + ... + 1132904.

It is an arithmetic number, because the mean of its divisors is an integer number (2763338760).

Almost surely, 2^68103878100 is an apocalyptic number.

68103878100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68103878100 is an abundant number, since it is smaller than the sum of its proper divisors (130856512620).

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

68103878100 is a wasteful number, since it uses less digits than its factorization.

68103878100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204129 (or 2204122 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 68103878100 in words is "sixty-eight billion, one hundred three million, eight hundred seventy-eight thousand, one hundred".