27157680000 has 960 divisors, whose sum is σ = 111348357120. Its totient is φ = 6531840000.

The previous prime is 27157679993. The next prime is 27157680037. The reversal of 27157680000 is 8675172.

27157680000 is a `hidden beast` number, since 2 + 7 + 1 + 576 + 80 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 213839937 + ... + 213840063.

It is an arithmetic number, because the mean of its divisors is an integer number (115987872).

Almost surely, 2^27157680000 is an apocalyptic number.

27157680000 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 27157680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55674178560).

27157680000 is an abundant number, since it is smaller than the sum of its proper divisors (84190677120).

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

27157680000 is an equidigital number, since it uses as much as digits as its factorization.

27157680000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 27157680000 in words is "twenty-seven billion, one hundred fifty-seven million, six hundred eighty thousand".