27138138030 has 48 divisors (see below), whose sum is σ = 72466172064. Its totient is φ = 7041245760.

The previous prime is 27138138023. The next prime is 27138138031. The reversal of 27138138030 is 3083183172.

27138138030 is a `hidden beast` number, since 271 + 3 + 8 + 1 + 380 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27138138031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4071466 + ... + 4078125.

It is an arithmetic number, because the mean of its divisors is an integer number (1509711918).

Almost surely, 2^27138138030 is an apocalyptic number.

27138138030 is an abundant number, since it is smaller than the sum of its proper divisors (45328034034).

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

27138138030 is a wasteful number, since it uses less digits than its factorization.

27138138030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149641 (or 8149638 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 27138138030 in words is "twenty-seven billion, one hundred thirty-eight million, one hundred thirty-eight thousand, thirty".