68381506 has 8 divisors (see below), whose sum is σ = 102611520. Its totient is φ = 34177668.

The previous prime is 68381483. The next prime is 68381543. The reversal of 68381506 is 60518386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2475 + ... + 11953.

It is an arithmetic number, because the mean of its divisors is an integer number (12826440).

Almost surely, 2^68381506 is an apocalyptic number.

68381506 is a deficient number, since it is larger than the sum of its proper divisors (34230014).

68381506 is a wasteful number, since it uses less digits than its factorization.

68381506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13088.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 68381506 is about 8269.3110958531. The cubic root of 68381506 is about 408.9274086411.

The spelling of 68381506 in words is "sixty-eight million, three hundred eighty-one thousand, five hundred six".