27270263720 has 128 divisors (see below), whose sum is σ = 77476953600. Its totient is φ = 8417181696.

The previous prime is 27270263689. The next prime is 27270263731. The reversal of 27270263720 is 2736207272.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15065 + ... + 234024.

It is an arithmetic number, because the mean of its divisors is an integer number (605288700).

Almost surely, 2^27270263720 is an apocalyptic number.

27270263720 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 27270263720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38738476800).

27270263720 is an abundant number, since it is smaller than the sum of its proper divisors (50206689880).

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

27270263720 is a wasteful number, since it uses less digits than its factorization.

27270263720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249147 (or 249143 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 38.

The spelling of 27270263720 in words is "twenty-seven billion, two hundred seventy million, two hundred sixty-three thousand, seven hundred twenty".