68649115 has 8 divisors (see below), whose sum is σ = 82495728. Its totient is φ = 54841440.

The previous prime is 68649107. The next prime is 68649121. The reversal of 68649115 is 51194686.

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

It is not a de Polignac number, because 68649115 - 2³ = 68649107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5701 + ... + 13030.

It is an arithmetic number, because the mean of its divisors is an integer number (10311966).

Almost surely, 2^68649115 is an apocalyptic number.

68649115 is a deficient number, since it is larger than the sum of its proper divisors (13846613).

68649115 is a wasteful number, since it uses less digits than its factorization.

68649115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19469.

The product of its digits is 51840, while the sum is 40.

The square root of 68649115 is about 8285.4761480557. The cubic root of 68649115 is about 409.4601560512.

The spelling of 68649115 in words is "sixty-eight million, six hundred forty-nine thousand, one hundred fifteen".