27045028400 has 120 divisors (see below), whose sum is σ = 73016472480. Its totient is φ = 9551646720.

The previous prime is 27045028397. The next prime is 27045028457. The reversal of 27045028400 is 482054072.

It is a super-2 number, since 2×27045028400² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6536 + ... + 232664.

It is an arithmetic number, because the mean of its divisors is an integer number (608470604).

Almost surely, 2^27045028400 is an apocalyptic number.

27045028400 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 27045028400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36508236240).

27045028400 is an abundant number, since it is smaller than the sum of its proper divisors (45971444080).

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

27045028400 is a wasteful number, since it uses less digits than its factorization.

27045028400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226183 (or 226172 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The spelling of 27045028400 in words is "twenty-seven billion, forty-five million, twenty-eight thousand, four hundred".