27055901880 has 1024 divisors, whose sum is σ = 116304076800. Its totient is φ = 5518098432.

The previous prime is 27055901879. The next prime is 27055901933. The reversal of 27055901880 is 8810955072.

It is a happy number.

27055901880 is a `hidden beast` number, since 2 + 7 + 0 + 559 + 0 + 18 + 80 = 666.

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 255 ways as a sum of consecutive naturals, for example, 239432704 + ... + 239432816.

It is an arithmetic number, because the mean of its divisors is an integer number (113578200).

Almost surely, 2^27055901880 is an apocalyptic number.

27055901880 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 27055901880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58152038400).

27055901880 is an abundant number, since it is smaller than the sum of its proper divisors (89248174920).

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

27055901880 is a wasteful number, since it uses less digits than its factorization.

27055901880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 27055901880 in words is "twenty-seven billion, fifty-five million, nine hundred one thousand, eight hundred eighty".