27744481808 has 10 divisors (see below), whose sum is σ = 53754933534. Its totient is φ = 13872240896.

The previous prime is 27744481753. The next prime is 27744481819. The reversal of 27744481808 is 80818444772.

It can be written as a sum of positive squares in only one way, i.e., 19519442944 + 8225038864 = 139712^2 + 90692^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27744481808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867015041 + ... + 867015072.

Almost surely, 2^27744481808 is an apocalyptic number.

It is an amenable number.

27744481808 is a deficient number, since it is larger than the sum of its proper divisors (26010451726).

27744481808 is a wasteful number, since it uses less digits than its factorization.

27744481808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734030121 (or 1734030115 counting only the distinct ones).

The product of its (nonzero) digits is 3211264, while the sum is 53.

The spelling of 27744481808 in words is "twenty-seven billion, seven hundred forty-four million, four hundred eighty-one thousand, eight hundred eight".