27043955136 has 224 divisors, whose sum is σ = 87109401600. Its totient is φ = 8159477760.

The previous prime is 27043955129. The next prime is 27043955137. The reversal of 27043955136 is 63155934072.

27043955136 is a `hidden beast` number, since 2 + 7 + 0 + 43 + 95 + 513 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 27043955091 and 27043955100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27043955137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4539936 + ... + 4545888.

Almost surely, 2^27043955136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27043955136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43554700800).

27043955136 is an abundant number, since it is smaller than the sum of its proper divisors (60065446464).

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

27043955136 is a wasteful number, since it uses less digits than its factorization.

27043955136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224 (or 6208 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 27043955136 in words is "twenty-seven billion, forty-three million, nine hundred fifty-five thousand, one hundred thirty-six".