68782156 has 24 divisors (see below), whose sum is σ = 121879296. Its totient is φ = 33962880.

The previous prime is 68782151. The next prime is 68782157. The reversal of 68782156 is 65128786.

It is not an unprimeable number, because it can be changed into a prime (68782151) 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, 150280 + ... + 150736.

It is an arithmetic number, because the mean of its divisors is an integer number (5078304).

Almost surely, 2^68782156 is an apocalyptic number.

It is an amenable number.

68782156 is a deficient number, since it is larger than the sum of its proper divisors (53097140).

68782156 is a wasteful number, since it uses less digits than its factorization.

68782156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 847 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 68782156 is about 8293.5008289624. The cubic root of 68782156 is about 409.7244946659.

The spelling of 68782156 in words is "sixty-eight million, seven hundred eighty-two thousand, one hundred fifty-six".