27115486720 has 480 divisors, whose sum is σ = 82400440320. Its totient is φ = 8500101120.

The previous prime is 27115486681. The next prime is 27115486793. The reversal of 27115486720 is 2768451172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73883977 + ... + 73884343.

It is an arithmetic number, because the mean of its divisors is an integer number (171667584).

Almost surely, 2^27115486720 is an apocalyptic number.

27115486720 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 27115486720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41200220160).

27115486720 is an abundant number, since it is smaller than the sum of its proper divisors (55284953600).

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

27115486720 is a wasteful number, since it uses less digits than its factorization.

27115486720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 27115486720 in words is "twenty-seven billion, one hundred fifteen million, four hundred eighty-six thousand, seven hundred twenty".