27139815936 has 100 divisors (see below), whose sum is σ = 81005328162. Its totient is φ = 9046591488.

The previous prime is 27139815917. The next prime is 27139816003. The reversal of 27139815936 is 63951893172.

27139815936 is a `hidden beast` number, since 2 + 71 + 398 + 159 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16833505536 + 10306310400 = 129744^2 + 101520^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 285735 + ... + 368678.

Almost surely, 2^27139815936 is an apocalyptic number.

It is an amenable number.

27139815936 is an abundant number, since it is smaller than the sum of its proper divisors (53865512226).

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

27139815936 is an frugal number, since it uses more digits than its factorization.

27139815936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654443 (or 654418 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 27139815936 in words is "twenty-seven billion, one hundred thirty-nine million, eight hundred fifteen thousand, nine hundred thirty-six".