68656454 has 16 divisors (see below), whose sum is σ = 104606208. Its totient is φ = 33792192.

The previous prime is 68656447. The next prime is 68656457. The reversal of 68656454 is 45465686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68656457) 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, 33812 + ... + 35784.

It is an arithmetic number, because the mean of its divisors is an integer number (6537888).

Almost surely, 2^68656454 is an apocalyptic number.

68656454 is a deficient number, since it is larger than the sum of its proper divisors (35949754).

68656454 is a wasteful number, since it uses less digits than its factorization.

68656454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its digits is 691200, while the sum is 44.

The square root of 68656454 is about 8285.9190196381. The cubic root of 68656454 is about 409.4747467758.

The spelling of 68656454 in words is "sixty-eight million, six hundred fifty-six thousand, four hundred fifty-four".