27016421280 has 96 divisors (see below), whose sum is σ = 85207889088. Its totient is φ = 7195392000.

The previous prime is 27016421261. The next prime is 27016421293. The reversal of 27016421280 is 8212461072.

It is a tau number, because it is divible by the number of its divisors (96).

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, 354580 + ... + 423980.

It is an arithmetic number, because the mean of its divisors is an integer number (887582178).

Almost surely, 2^27016421280 is an apocalyptic number.

27016421280 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 27016421280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42603944544).

27016421280 is an abundant number, since it is smaller than the sum of its proper divisors (58191467808).

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

27016421280 is a wasteful number, since it uses less digits than its factorization.

27016421280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70230 (or 70222 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 27016421280 in words is "twenty-seven billion, sixteen million, four hundred twenty-one thousand, two hundred eighty".