27131038518 has 16 divisors (see below), whose sum is σ = 54742273776. Its totient is φ = 8963646720.

The previous prime is 27131038499. The next prime is 27131038547. The reversal of 27131038518 is 81583013172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20007463 + ... + 20008818.

It is an arithmetic number, because the mean of its divisors is an integer number (3421392111).

Almost surely, 2^27131038518 is an apocalyptic number.

27131038518 is an abundant number, since it is smaller than the sum of its proper divisors (27611235258).

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

27131038518 is a wasteful number, since it uses less digits than its factorization.

27131038518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40016399.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 27131038518 in words is "twenty-seven billion, one hundred thirty-one million, thirty-eight thousand, five hundred eighteen".