27081651436 has 24 divisors (see below), whose sum is σ = 55268679200. Its totient is φ = 11606421456.

The previous prime is 27081651433. The next prime is 27081651469. The reversal of 27081651436 is 63415618072.

It is a junction number, because it is equal to n+sod(n) for n = 27081651392 and 27081651401.

It is not an unprimeable number, because it can be changed into a prime (27081651433) 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, 9868035 + ... + 9870778.

Almost surely, 2^27081651436 is an apocalyptic number.

It is an amenable number.

27081651436 is an abundant number, since it is smaller than the sum of its proper divisors (28187027764).

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

27081651436 is a wasteful number, since it uses less digits than its factorization.

27081651436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19738838 (or 19738822 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 27081651436 in words is "twenty-seven billion, eighty-one million, six hundred fifty-one thousand, four hundred thirty-six".