27730251484 has 24 divisors (see below), whose sum is σ = 54533072160. Its totient is φ = 12242117184.

The previous prime is 27730251473. The next prime is 27730251491. The reversal of 27730251484 is 48415203772.

It is a self number, because there is not a number n which added to its sum of digits gives 27730251484.

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 7 ways as a sum of consecutive naturals, for example, 11591719 + ... + 11594110.

It is an arithmetic number, because the mean of its divisors is an integer number (2272211340).

Almost surely, 2^27730251484 is an apocalyptic number.

It is an amenable number.

27730251484 is a deficient number, since it is larger than the sum of its proper divisors (26802820676).

27730251484 is a wasteful number, since it uses less digits than its factorization.

27730251484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23185869 (or 23185867 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 27730251484 in words is "twenty-seven billion, seven hundred thirty million, two hundred fifty-one thousand, four hundred eighty-four".