68722911 has 20 divisors (see below), whose sum is σ = 103172344. Its totient is φ = 45586800.

The previous prime is 68722909. The next prime is 68722931. The reversal of 68722911 is 11922786.

It is not a de Polignac number, because 68722911 - 2¹ = 68722909 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 (68722931) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15081 + ... + 19101.

Almost surely, 2^68722911 is an apocalyptic number.

68722911 is a deficient number, since it is larger than the sum of its proper divisors (34449433).

68722911 is a wasteful number, since it uses less digits than its factorization.

68722911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244 (or 4235 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 68722911 is about 8289.9282867827. The cubic root of 68722911 is about 409.6068231559.

The spelling of 68722911 in words is "sixty-eight million, seven hundred twenty-two thousand, nine hundred eleven".