68081604 has 24 divisors (see below), whose sum is σ = 159165888. Its totient is φ = 22649760.

The previous prime is 68081603. The next prime is 68081609. The reversal of 68081604 is 40618086.

It is not an unprimeable number, because it can be changed into a prime (68081603) 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, 1249 + ... + 11735.

It is an arithmetic number, because the mean of its divisors is an integer number (6631912).

Almost surely, 2^68081604 is an apocalyptic number.

It is an amenable number.

68081604 is an abundant number, since it is smaller than the sum of its proper divisors (91084284).

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

68081604 is a wasteful number, since it uses less digits than its factorization.

68081604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11035 (or 11033 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 68081604 is about 8251.1577369482. The cubic root of 68081604 is about 408.3287191297.

The spelling of 68081604 in words is "sixty-eight million, eighty-one thousand, six hundred four".