68740064 has 12 divisors (see below), whose sum is σ = 135332064. Its totient is φ = 34370016.

The previous prime is 68740013. The next prime is 68740069. The reversal of 68740064 is 46004786.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68740069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074032 + ... + 1074095.

It is an arithmetic number, because the mean of its divisors is an integer number (11277672).

Almost surely, 2^68740064 is an apocalyptic number.

It is an amenable number.

68740064 is a deficient number, since it is larger than the sum of its proper divisors (66592000).

68740064 is a wasteful number, since it uses less digits than its factorization.

68740064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148137 (or 2148129 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 68740064 is about 8290.9627908947. The cubic root of 68740064 is about 409.6408991346.

The spelling of 68740064 in words is "sixty-eight million, seven hundred forty thousand, sixty-four".