68185413 has 24 divisors (see below), whose sum is σ = 102412128. Its totient is φ = 43677792.

The previous prime is 68185393. The next prime is 68185421. The reversal of 68185413 is 31458186.

68185413 is a `hidden beast` number, since 68 + 185 + 413 = 666.

It is not a de Polignac number, because 68185413 - 2¹² = 68181317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68181413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26406 + ... + 28872.

It is an arithmetic number, because the mean of its divisors is an integer number (4267172).

Almost surely, 2^68185413 is an apocalyptic number.

It is an amenable number.

68185413 is a deficient number, since it is larger than the sum of its proper divisors (34226715).

68185413 is a wasteful number, since it uses less digits than its factorization.

68185413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593 (or 2590 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 68185413 is about 8257.4459126294. The cubic root of 68185413 is about 408.5361499559.

The spelling of 68185413 in words is "sixty-eight million, one hundred eighty-five thousand, four hundred thirteen".