68077478 has 16 divisors (see below), whose sum is σ = 116911104. Its totient is φ = 29124360.

The previous prime is 68077463. The next prime is 68077481. The reversal of 68077478 is 87477086.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4493 + ... + 12503.

It is an arithmetic number, because the mean of its divisors is an integer number (7306944).

Almost surely, 2^68077478 is an apocalyptic number.

68077478 is a deficient number, since it is larger than the sum of its proper divisors (48833626).

68077478 is a wasteful number, since it uses less digits than its factorization.

68077478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627.

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 68077478 is about 8250.9077076404. The cubic root of 68077478 is about 408.3204702135.

The spelling of 68077478 in words is "sixty-eight million, seventy-seven thousand, four hundred seventy-eight".