27744481836 has 36 divisors (see below), whose sum is σ = 70272475000. Its totient is φ = 9229621248.

The previous prime is 27744481823. The next prime is 27744481841. The reversal of 27744481836 is 63818444772.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 754261 + ... + 790188.

Almost surely, 2^27744481836 is an apocalyptic number.

It is an amenable number.

27744481836 is an abundant number, since it is smaller than the sum of its proper divisors (42527993164).

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

27744481836 is a wasteful number, since it uses less digits than its factorization.

27744481836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544958 (or 1544953 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 27744481836 in words is "twenty-seven billion, seven hundred forty-four million, four hundred eighty-one thousand, eight hundred thirty-six".