68778429 has 8 divisors (see below), whose sum is σ = 94662912. Its totient is φ = 44373120.

The previous prime is 68778407. The next prime is 68778439. The reversal of 68778429 is 92487786.

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

It is not a de Polignac number, because 68778429 - 2⁵ = 68778397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68778439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369684 + ... + 369869.

It is an arithmetic number, because the mean of its divisors is an integer number (11832864).

Almost surely, 2^68778429 is an apocalyptic number.

It is an amenable number.

68778429 is a deficient number, since it is larger than the sum of its proper divisors (25884483).

68778429 is a wasteful number, since it uses less digits than its factorization.

68778429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739587.

The product of its digits is 1354752, while the sum is 51.

The square root of 68778429 is about 8293.2761319035. The cubic root of 68778429 is about 409.7170941477.

The spelling of 68778429 in words is "sixty-eight million, seven hundred seventy-eight thousand, four hundred twenty-nine".