68049609 has 8 divisors (see below), whose sum is σ = 91311360. Its totient is φ = 45077136.

The previous prime is 68049601. The next prime is 68049629. The reversal of 68049609 is 90694086.

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

It is not a de Polignac number, because 68049609 - 2³ = 68049601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68049601) 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, 71769 + ... + 72710.

It is an arithmetic number, because the mean of its divisors is an integer number (11413920).

Almost surely, 2^68049609 is an apocalyptic number.

It is an amenable number.

68049609 is a deficient number, since it is larger than the sum of its proper divisors (23261751).

68049609 is a wasteful number, since it uses less digits than its factorization.

68049609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144639.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 68049609 is about 8249.2186902761. The cubic root of 68049609 is about 408.2647443128.

The spelling of 68049609 in words is "sixty-eight million, forty-nine thousand, six hundred nine".