68910911 has 8 divisors (see below), whose sum is σ = 73432080. Its totient is φ = 64441728.

The previous prime is 68910901. The next prime is 68910913. The reversal of 68910911 is 11901986.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68910911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10241 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (9179010).

Almost surely, 2^68910911 is an apocalyptic number.

68910911 is a deficient number, since it is larger than the sum of its proper divisors (4521169).

68910911 is a wasteful number, since it uses less digits than its factorization.

68910911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25993.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 68910911 is about 8301.2596032169. The cubic root of 68910911 is about 409.9799930749.

The spelling of 68910911 in words is "sixty-eight million, nine hundred ten thousand, nine hundred eleven".