27845544740 has 192 divisors, whose sum is σ = 68350625280. Its totient is φ = 9436815360.

The previous prime is 27845544737. The next prime is 27845544913. The reversal of 27845544740 is 4744554872.

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 63 ways as a sum of consecutive naturals, for example, 37476809 + ... + 37477551.

It is an arithmetic number, because the mean of its divisors is an integer number (355992840).

Almost surely, 2^27845544740 is an apocalyptic number.

27845544740 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 27845544740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34175312640).

27845544740 is an abundant number, since it is smaller than the sum of its proper divisors (40505080540).

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

27845544740 is a wasteful number, since it uses less digits than its factorization.

27845544740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 50.

The spelling of 27845544740 in words is "twenty-seven billion, eight hundred forty-five million, five hundred forty-four thousand, seven hundred forty".