27783240288 has 48 divisors (see below), whose sum is σ = 72941646960. Its totient is φ = 9259728896.

The previous prime is 27783240269. The next prime is 27783240349. The reversal of 27783240288 is 88204238772.

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

It is a self number, because there is not a number n which added to its sum of digits gives 27783240288.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809656 + ... + 843272.

It is an arithmetic number, because the mean of its divisors is an integer number (1519617645).

Almost surely, 2^27783240288 is an apocalyptic number.

It is an amenable number.

27783240288 is an abundant number, since it is smaller than the sum of its proper divisors (45158406672).

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

27783240288 is a wasteful number, since it uses less digits than its factorization.

27783240288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42239 (or 42231 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 51.

The spelling of 27783240288 in words is "twenty-seven billion, seven hundred eighty-three million, two hundred forty thousand, two hundred eighty-eight".