68149079 has 8 divisors (see below), whose sum is σ = 70109088. Its totient is φ = 66195360.

The previous prime is 68149063. The next prime is 68149087. The reversal of 68149079 is 97094186.

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 68149079 - 2⁴ = 68149063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68149019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28334 + ... + 30644.

It is an arithmetic number, because the mean of its divisors is an integer number (8763636).

Almost surely, 2^68149079 is an apocalyptic number.

68149079 is a deficient number, since it is larger than the sum of its proper divisors (1960009).

68149079 is a wasteful number, since it uses less digits than its factorization.

68149079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 68149079 is about 8255.2455445008. The cubic root of 68149079 is about 408.4635714322.

The spelling of 68149079 in words is "sixty-eight million, one hundred forty-nine thousand, seventy-nine".