27000005400 has 240 divisors, whose sum is σ = 95772932640. Its totient is φ = 7046611200.

The previous prime is 27000005369. The next prime is 27000005407. The reversal of 27000005400 is 450000072.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27000005407) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 743670 + ... + 779130.

It is an arithmetic number, because the mean of its divisors is an integer number (399053886).

Almost surely, 2^27000005400 is an apocalyptic number.

27000005400 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 27000005400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47886466320).

27000005400 is an abundant number, since it is smaller than the sum of its proper divisors (68772927240).

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

27000005400 is a wasteful number, since it uses less digits than its factorization.

27000005400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35536 (or 35518 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

Adding to 27000005400 its reverse (450000072), we get a palindrome (27450005472).

The spelling of 27000005400 in words is "twenty-seven billion, five thousand, four hundred".