27328472064 has 176 divisors, whose sum is σ = 81939608640. Its totient is φ = 9108744192.

The previous prime is 27328472053. The next prime is 27328472071. The reversal of 27328472064 is 46027482372.

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, 2233387 + ... + 2245589.

Almost surely, 2^27328472064 is an apocalyptic number.

27328472064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27328472064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40969804320).

27328472064 is an abundant number, since it is smaller than the sum of its proper divisors (54611136576).

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

27328472064 is an frugal number, since it uses more digits than its factorization.

27328472064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12244 (or 12208 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 27328472064 in words is "twenty-seven billion, three hundred twenty-eight million, four hundred seventy-two thousand, sixty-four".