68015408 has 10 divisors (see below), whose sum is σ = 131779884. Its totient is φ = 34007696.

The previous prime is 68015407. The next prime is 68015413. The reversal of 68015408 is 80451086.

It is not an unprimeable number, because it can be changed into a prime (68015401) 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 as a sum of consecutive naturals, namely, 2125466 + ... + 2125497.

Almost surely, 2^68015408 is an apocalyptic number.

It is an amenable number.

68015408 is a deficient number, since it is larger than the sum of its proper divisors (63764476).

68015408 is a wasteful number, since it uses less digits than its factorization.

68015408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250971 (or 4250965 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 68015408 is about 8247.1454455466. The cubic root of 68015408 is about 408.1963363645.

The spelling of 68015408 in words is "sixty-eight million, fifteen thousand, four hundred eight".