68281876 has 24 divisors (see below), whose sum is σ = 129170664. Its totient is φ = 31395840.

The previous prime is 68281867. The next prime is 68281883. The reversal of 68281876 is 67818286.

It can be written as a sum of positive squares in 4 ways, for example, as 20340100 + 47941776 = 4510^2 + 6924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12276 + ... + 16948.

It is an arithmetic number, because the mean of its divisors is an integer number (5382111).

Almost surely, 2^68281876 is an apocalyptic number.

It is an amenable number.

68281876 is a deficient number, since it is larger than the sum of its proper divisors (60888788).

68281876 is a wasteful number, since it uses less digits than its factorization.

68281876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971 (or 4969 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 68281876 is about 8263.2848190051. The cubic root of 68281876 is about 408.7287133967.

The spelling of 68281876 in words is "sixty-eight million, two hundred eighty-one thousand, eight hundred seventy-six".