68888851 has 8 divisors (see below), whose sum is σ = 74854400. Its totient is φ = 63157320.

The previous prime is 68888849. The next prime is 68888861. The reversal of 68888851 is 15888886.

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

It is a cyclic number.

It is not a de Polignac number, because 68888851 - 2¹ = 68888849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68888801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57891 + ... + 59068.

It is an arithmetic number, because the mean of its divisors is an integer number (9356800).

Almost surely, 2^68888851 is an apocalyptic number.

68888851 is a deficient number, since it is larger than the sum of its proper divisors (5965549).

68888851 is a wasteful number, since it uses less digits than its factorization.

68888851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117009.

The product of its digits is 983040, while the sum is 52.

The square root of 68888851 is about 8299.9307828439. The cubic root of 68888851 is about 409.9362403330.

It can be divided in two parts, 6888885 and 1, that added together give a palindrome (6888886).

The spelling of 68888851 in words is "sixty-eight million, eight hundred eighty-eight thousand, eight hundred fifty-one".