68278100 has 36 divisors (see below), whose sum is σ = 161635488. Its totient is φ = 24828000.

The previous prime is 68278081. The next prime is 68278127. The reversal of 68278100 is 187286.

It is a super-2 number, since 2×68278100² = 9323797879220000, which contains 22 as substring.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29936 + ... + 32135.

Almost surely, 2^68278100 is an apocalyptic number.

It is an amenable number.

68278100 is an abundant number, since it is smaller than the sum of its proper divisors (93357388).

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

68278100 is a wasteful number, since it uses less digits than its factorization.

68278100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62096 (or 62089 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 68278100 is about 8263.0563352793. The cubic root of 68278100 is about 408.7211790008.

The spelling of 68278100 in words is "sixty-eight million, two hundred seventy-eight thousand, one hundred".