28408955980482 has 48 divisors (see below), whose sum is σ = 76741075899072. Its totient is φ = 7378949604960.

The previous prime is 28408955980463. The next prime is 28408955980487.

28408955980482 is a `hidden beast` number, since 2 + 8 + 4 + 0 + 8 + 9 + 55 + 98 + 0 + 482 = 666.

28408955980482 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 28408955980482.

It is not an unprimeable number, because it can be changed into a prime (28408955980487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10248539733 + ... + 10248542504.

It is an arithmetic number, because the mean of its divisors is an integer number (1598772414564).

Almost surely, 2^{28408955980482} is an apocalyptic number.

28408955980482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28408955980482 is an abundant number, since it is smaller than the sum of its proper divisors (48332119918590).

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

28408955980482 is a wasteful number, since it uses less digits than its factorization.

28408955980482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20497082263 (or 20497082260 counting only the distinct ones).

The product of its (nonzero) digits is 530841600, while the sum is 72.

The spelling of 28408955980482 in words is "twenty-eight trillion, four hundred eight billion, nine hundred fifty-five million, nine hundred eighty thousand, four hundred eighty-two".