27551436628 has 24 divisors (see below), whose sum is σ = 51245405120. Its totient is φ = 12923971200.

The previous prime is 27551436623. The next prime is 27551436629. The reversal of 27551436628 is 82663415572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27551436623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751973 + ... + 1767628.

Almost surely, 2^27551436628 is an apocalyptic number.

It is an amenable number.

27551436628 is a deficient number, since it is larger than the sum of its proper divisors (23693968492).

27551436628 is a wasteful number, since it uses less digits than its factorization.

27551436628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519727 (or 3519725 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 49.

The spelling of 27551436628 in words is "twenty-seven billion, five hundred fifty-one million, four hundred thirty-six thousand, six hundred twenty-eight".