68154672 has 40 divisors (see below), whose sum is σ = 185335360. Its totient is φ = 21522240.

The previous prime is 68154659. The next prime is 68154673. The reversal of 68154672 is 27645186.

It is a self number, because there is not a number n which added to its sum of digits gives 68154672.

It is not an unprimeable number, because it can be changed into a prime (68154673) 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, 36454 + ... + 38277.

It is an arithmetic number, because the mean of its divisors is an integer number (4633384).

Almost surely, 2^68154672 is an apocalyptic number.

It is an amenable number.

68154672 is an abundant number, since it is smaller than the sum of its proper divisors (117180688).

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

68154672 is a wasteful number, since it uses less digits than its factorization.

68154672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74761 (or 74755 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 68154672 is about 8255.5842918597. The cubic root of 68154672 is about 408.4747453384.

The spelling of 68154672 in words is "sixty-eight million, one hundred fifty-four thousand, six hundred seventy-two".