27181459740 has 96 divisors (see below), whose sum is σ = 77286242880. Its totient is φ = 7136870400.

The previous prime is 27181459733. The next prime is 27181459751. The reversal of 27181459740 is 4795418172.

It is a self number, because there is not a number n which added to its sum of digits gives 27181459740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1276380 + ... + 1297500.

It is an arithmetic number, because the mean of its divisors is an integer number (805065030).

Almost surely, 2^27181459740 is an apocalyptic number.

27181459740 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 27181459740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38643121440).

27181459740 is an abundant number, since it is smaller than the sum of its proper divisors (50104783140).

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

27181459740 is a wasteful number, since it uses less digits than its factorization.

27181459740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21463 (or 21461 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 27181459740 in words is "twenty-seven billion, one hundred eighty-one million, four hundred fifty-nine thousand, seven hundred forty".