27753478448 has 80 divisors (see below), whose sum is σ = 59131572480. Its totient is φ = 12560308992.

The previous prime is 27753478409. The next prime is 27753478453. The reversal of 27753478448 is 84487435772.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8129990 + ... + 8133402.

It is an arithmetic number, because the mean of its divisors is an integer number (739144656).

Almost surely, 2^27753478448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27753478448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29565786240).

27753478448 is an abundant number, since it is smaller than the sum of its proper divisors (31378094032).

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

27753478448 is a wasteful number, since it uses less digits than its factorization.

27753478448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 4620 counting only the distinct ones).

The product of its digits is 42147840, while the sum is 59.

The spelling of 27753478448 in words is "twenty-seven billion, seven hundred fifty-three million, four hundred seventy-eight thousand, four hundred forty-eight".