27107239680 has 180 divisors, whose sum is σ = 96995031672. Its totient is φ = 7228569600.

The previous prime is 27107239673. The next prime is 27107239729. The reversal of 27107239680 is 8693270172.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27046 + ... + 234405.

Almost surely, 2^27107239680 is an apocalyptic number.

27107239680 is a gapful number since it is divisible by the number (20) 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 27107239680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48497515836).

27107239680 is an abundant number, since it is smaller than the sum of its proper divisors (69887791992).

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

27107239680 is an equidigital number, since it uses as much as digits as its factorization.

27107239680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261484 (or 261461 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 27107239680 in words is "twenty-seven billion, one hundred seven million, two hundred thirty-nine thousand, six hundred eighty".