68778332 has 24 divisors (see below), whose sum is σ = 137832576. Its totient is φ = 29417328.

The previous prime is 68778331. The next prime is 68778377. The reversal of 68778332 is 23387786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68778331) by changing a digit.

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, 13583 + ... + 17945.

It is an arithmetic number, because the mean of its divisors is an integer number (5743024).

Almost surely, 2^68778332 is an apocalyptic number.

It is an amenable number.

68778332 is an abundant number, since it is smaller than the sum of its proper divisors (69054244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68778332 is a wasteful number, since it uses less digits than its factorization.

68778332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4937 (or 4935 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 68778332 is about 8293.2702837903. The cubic root of 68778332 is about 409.7169015361.

The spelling of 68778332 in words is "sixty-eight million, seven hundred seventy-eight thousand, three hundred thirty-two".