27478847040 has 224 divisors, whose sum is σ = 92979118080. Its totient is φ = 6859708416.

The previous prime is 27478847009. The next prime is 27478847047. The reversal of 27478847040 is 4074887472.

It is not an unprimeable number, because it can be changed into a prime (27478847047) by changing a digit.

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, 1024521 + ... + 1050999.

Almost surely, 2^27478847040 is an apocalyptic number.

27478847040 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 27478847040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46489559040).

27478847040 is an abundant number, since it is smaller than the sum of its proper divisors (65500271040).

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

27478847040 is a wasteful number, since it uses less digits than its factorization.

27478847040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26569 (or 26559 counting only the distinct ones).

The product of its (nonzero) digits is 2809856, while the sum is 51.

The spelling of 27478847040 in words is "twenty-seven billion, four hundred seventy-eight million, eight hundred forty-seven thousand, forty".