68538211 has 12 divisors (see below), whose sum is σ = 79892568. Its totient is φ = 58625952.

The previous prime is 68538209. The next prime is 68538221. The reversal of 68538211 is 11283586.

It is not a de Polignac number, because 68538211 - 2¹ = 68538209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68538221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29100 + ... + 31366.

It is an arithmetic number, because the mean of its divisors is an integer number (6657714).

Almost surely, 2^68538211 is an apocalyptic number.

68538211 is a deficient number, since it is larger than the sum of its proper divisors (11354357).

68538211 is a wasteful number, since it uses less digits than its factorization.

68538211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898 (or 2891 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 68538211 is about 8278.7807677218. The cubic root of 68538211 is about 409.2395402179.

The spelling of 68538211 in words is "sixty-eight million, five hundred thirty-eight thousand, two hundred eleven".