27010553440 has 144 divisors (see below), whose sum is σ = 69237086688. Its totient is φ = 9953169408.

The previous prime is 27010553419. The next prime is 27010553441. The reversal of 27010553440 is 4435501072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27010553441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26147164 + ... + 26148196.

It is an arithmetic number, because the mean of its divisors is an integer number (480813102).

Almost surely, 2^27010553440 is an apocalyptic number.

27010553440 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 27010553440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34618543344).

27010553440 is an abundant number, since it is smaller than the sum of its proper divisors (42226533248).

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

27010553440 is a wasteful number, since it uses less digits than its factorization.

27010553440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 27010553440 in words is "twenty-seven billion, ten million, five hundred fifty-three thousand, four hundred forty".