27440155100 has 18 divisors (see below), whose sum is σ = 59545136784. Its totient is φ = 10976062000.

The previous prime is 27440155013. The next prime is 27440155121. The reversal of 27440155100 is 155104472.

It is a super-2 number, since 2×27440155100² (a number of 22 digits) contains 22 as substring.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 137200676 + ... + 137200875.

Almost surely, 2^27440155100 is an apocalyptic number.

27440155100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27440155100 is an abundant number, since it is smaller than the sum of its proper divisors (32104981684).

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

27440155100 is a wasteful number, since it uses less digits than its factorization.

27440155100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274401565 (or 274401558 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

Adding to 27440155100 its reverse (155104472), we get a palindrome (27595259572).

The spelling of 27440155100 in words is "twenty-seven billion, four hundred forty million, one hundred fifty-five thousand, one hundred".