68126449 has 4 divisors (see below), whose sum is σ = 68161536. Its totient is φ = 68091364.

The previous prime is 68126441. The next prime is 68126473. The reversal of 68126449 is 94462186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68126449 - 2³ = 68126441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68126441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14449 + ... + 18574.

It is an arithmetic number, because the mean of its divisors is an integer number (17040384).

Almost surely, 2^68126449 is an apocalyptic number.

It is an amenable number.

68126449 is a deficient number, since it is larger than the sum of its proper divisors (35087).

68126449 is a wasteful number, since it uses less digits than its factorization.

68126449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35086.

The product of its digits is 82944, while the sum is 40.

The square root of 68126449 is about 8253.8747870318. The cubic root of 68126449 is about 408.4183541228.

The spelling of 68126449 in words is "sixty-eight million, one hundred twenty-six thousand, four hundred forty-nine".