28284910944 has 48 divisors (see below), whose sum is σ = 74281016880. Its totient is φ = 9424097280.

The previous prime is 28284910939. The next prime is 28284910963. The reversal of 28284910944 is 44901948282.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×28284910944² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154392 + ... + 283560.

It is an arithmetic number, because the mean of its divisors is an integer number (1547521185).

Almost surely, 2^28284910944 is an apocalyptic number.

28284910944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28284910944 is an abundant number, since it is smaller than the sum of its proper divisors (45996105936).

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

28284910944 is a wasteful number, since it uses less digits than its factorization.

28284910944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131463 (or 131455 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 28284910944 in words is "twenty-eight billion, two hundred eighty-four million, nine hundred ten thousand, nine hundred forty-four".