4458778544 has 20 divisors (see below), whose sum is σ = 9424236840. Its totient is φ = 2026717440.

The previous prime is 4458778543. The next prime is 4458778553.

4458778544 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×4458778544² = 39761412208869519872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4458778544.

It is not an unprimeable number, because it can be changed into a prime (4458778543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12666809 + ... + 12667160.

It is an arithmetic number, because the mean of its divisors is an integer number (471211842).

Almost surely, 2^4458778544 is an apocalyptic number.

4458778544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4458778544 is an abundant number, since it is smaller than the sum of its proper divisors (4965458296).

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

4458778544 is a wasteful number, since it uses less digits than its factorization.

4458778544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25333988 (or 25333982 counting only the distinct ones).

The product of its digits is 20070400, while the sum is 56.

The square root of 4458778544 is about 66774.0858716913. The cubic root of 4458778544 is about 1645.9070325403.

The spelling of 4458778544 in words is "four billion, four hundred fifty-eight million, seven hundred seventy-eight thousand, five hundred forty-four".