27155896448 has 64 divisors (see below), whose sum is σ = 54810108000. Its totient is φ = 13400217600.

The previous prime is 27155896421. The next prime is 27155896463. The reversal of 27155896448 is 84469855172.

It is a tau number, because it is divible by the number of its divisors (64).

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, 7049723 + ... + 7053573.

Almost surely, 2^27155896448 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 27155896448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27405054000).

27155896448 is an abundant number, since it is smaller than the sum of its proper divisors (27654211552).

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

27155896448 is an equidigital number, since it uses as much as digits as its factorization.

27155896448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4573 (or 4561 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 59.

The spelling of 27155896448 in words is "twenty-seven billion, one hundred fifty-five million, eight hundred ninety-six thousand, four hundred forty-eight".