454545678 has 16 divisors (see below), whose sum is σ = 909377280. Its totient is φ = 151467576.

The previous prime is 454545673. The next prime is 454545713. The reversal of 454545678 is 876545454.

454545678 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×454545678² = 413223546776959368, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454545673) 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, 12651 + ... + 32697.

It is an arithmetic number, because the mean of its divisors is an integer number (56836080).

Almost surely, 2^454545678 is an apocalyptic number.

454545678 is an abundant number, since it is smaller than the sum of its proper divisors (454831602).

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

454545678 is a wasteful number, since it uses less digits than its factorization.

454545678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23831.

The product of its digits is 2688000, while the sum is 48.

The square root of 454545678 is about 21320.0768760340. The cubic root of 454545678 is about 768.8810858226.

The spelling of 454545678 in words is "four hundred fifty-four million, five hundred forty-five thousand, six hundred seventy-eight".