68011689 has 8 divisors (see below), whose sum is σ = 91143360. Its totient is φ = 45110576.

The previous prime is 68011651. The next prime is 68011693. The reversal of 68011689 is 98611086.

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 68011689 - 2¹³ = 68003497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68011609) 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, 56949 + ... + 58130.

It is an arithmetic number, because the mean of its divisors is an integer number (11392920).

Almost surely, 2^68011689 is an apocalyptic number.

It is an amenable number.

68011689 is a deficient number, since it is larger than the sum of its proper divisors (23131671).

68011689 is a wasteful number, since it uses less digits than its factorization.

68011689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115279.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 68011689 is about 8246.9199705102. The cubic root of 68011689 is about 408.1888963354.

The spelling of 68011689 in words is "sixty-eight million, eleven thousand, six hundred eighty-nine".