28181377482 has 16 divisors (see below), whose sum is σ = 56364543360. Its totient is φ = 9393494432.

The previous prime is 28181377451. The next prime is 28181377493. The reversal of 28181377482 is 28477318182.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219694 + ... + 323462.

It is an arithmetic number, because the mean of its divisors is an integer number (3522783960).

Almost surely, 2^28181377482 is an apocalyptic number.

28181377482 is an abundant number, since it is smaller than the sum of its proper divisors (28183165878).

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

28181377482 is a wasteful number, since it uses less digits than its factorization.

28181377482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149037.

The product of its digits is 1204224, while the sum is 51.

The spelling of 28181377482 in words is "twenty-eight billion, one hundred eighty-one million, three hundred seventy-seven thousand, four hundred eighty-two".