68818132 has 6 divisors (see below), whose sum is σ = 120431738. Its totient is φ = 34409064.

The previous prime is 68818129. The next prime is 68818147. The reversal of 68818132 is 23181886.

It can be written as a sum of positive squares in only one way, i.e., 45643536 + 23174596 = 6756^2 + 4814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68818091 and 68818100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8602263 + ... + 8602270.

Almost surely, 2^68818132 is an apocalyptic number.

It is an amenable number.

68818132 is a deficient number, since it is larger than the sum of its proper divisors (51613606).

68818132 is a wasteful number, since it uses less digits than its factorization.

68818132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17204537 (or 17204535 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 68818132 is about 8295.6694726827. The cubic root of 68818132 is about 409.7959166746.

The spelling of 68818132 in words is "sixty-eight million, eight hundred eighteen thousand, one hundred thirty-two".