28726182144 has 405 divisors, whose sum is σ = 95039255311. Its totient is φ = 8623549440.

The previous prime is 28726182139. The next prime is 28726182169. The reversal of 28726182144 is 44128162782.

The square root of 28726182144 is 169488.

It is a perfect power (a square), and thus also a powerful number.

28726182144 is a `hidden beast` number, since 2 + 8 + 7 + 2 + 618 + 21 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28726182144.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 268468939 + ... + 268469045.

Almost surely, 2^28726182144 is an apocalyptic number.

28726182144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

28726182144 is the 169488-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28726182144

28726182144 is an abundant number, since it is smaller than the sum of its proper divisors (66313073167).

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

28726182144 is an equidigital number, since it uses as much as digits as its factorization.

28726182144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 123 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The spelling of 28726182144 in words is "twenty-eight billion, seven hundred twenty-six million, one hundred eighty-two thousand, one hundred forty-four".