27064649448 has 128 divisors (see below), whose sum is σ = 78921216000. Its totient is φ = 8582431680.

The previous prime is 27064649413. The next prime is 27064649453. The reversal of 27064649448 is 84494646072.

27064649448 is a `hidden beast` number, since 2 + 70 + 6 + 46 + 494 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 27064649394 and 27064649403.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360811 + ... + 429317.

It is an arithmetic number, because the mean of its divisors is an integer number (616572000).

Almost surely, 2^27064649448 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 27064649448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39460608000).

27064649448 is an abundant number, since it is smaller than the sum of its proper divisors (51856566552).

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

27064649448 is a wasteful number, since it uses less digits than its factorization.

27064649448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68612 (or 68602 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 27064649448 in words is "twenty-seven billion, sixty-four million, six hundred forty-nine thousand, four hundred forty-eight".