68178432100 has 27 divisors (see below), whose sum is σ = 147952863961. Its totient is φ = 27270328400.

The previous prime is 68178432071. The next prime is 68178432107. The reversal of 68178432100 is 123487186.

The square root of 68178432100 is 261110.

It is a perfect power (a square), and thus also a powerful number.

68178432100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 24544235556 + 43634196544 = 156666^2 + 208888^2 .

It is a super-2 number, since 2×68178432100² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68178432107) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2598045 + ... + 2624155.

Almost surely, 2^68178432100 is an apocalyptic number.

68178432100 is the 261110-th square number.

It is an amenable number.

68178432100 is an abundant number, since it is smaller than the sum of its proper divisors (79774431861).

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

68178432100 is an frugal number, since it uses more digits than its factorization.

68178432100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52236 (or 26118 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 68178432100 in words is "sixty-eight billion, one hundred seventy-eight million, four hundred thirty-two thousand, one hundred".