68886751 has 8 divisors (see below), whose sum is σ = 70535664. Its totient is φ = 67254720.

The previous prime is 68886749. The next prime is 68886757. The reversal of 68886751 is 15768886.

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 68886751 - 2¹ = 68886749 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 68886695 and 68886704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68886757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4236 + ... + 12478.

It is an arithmetic number, because the mean of its divisors is an integer number (8816958).

Almost surely, 2^68886751 is an apocalyptic number.

68886751 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

68886751 is a deficient number, since it is larger than the sum of its proper divisors (1648913).

68886751 is a wasteful number, since it uses less digits than its factorization.

68886751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441.

The product of its digits is 645120, while the sum is 49.

The square root of 68886751 is about 8299.8042748007. The cubic root of 68886751 is about 409.9320748073.

The spelling of 68886751 in words is "sixty-eight million, eight hundred eighty-six thousand, seven hundred fifty-one".