68775049 has 4 divisors (see below), whose sum is σ = 78600064. Its totient is φ = 58950036.

The previous prime is 68775043. The next prime is 68775169. The reversal of 68775049 is 94057786.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-68775049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68775043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4912497 + ... + 4912510.

It is an arithmetic number, because the mean of its divisors is an integer number (19650016).

Almost surely, 2^68775049 is an apocalyptic number.

It is an amenable number.

68775049 is a deficient number, since it is larger than the sum of its proper divisors (9825015).

68775049 is an equidigital number, since it uses as much as digits as its factorization.

68775049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825014.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 68775049 is about 8293.0723498592. The cubic root of 68775049 is about 409.7103824191.

The spelling of 68775049 in words is "sixty-eight million, seven hundred seventy-five thousand, forty-nine".