27219875388 has 48 divisors (see below), whose sum is σ = 63821399040. Its totient is φ = 9029293504.

The previous prime is 27219875387. The next prime is 27219875393. The reversal of 27219875388 is 88357891272.

It is a super-2 number, since 2×27219875388² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27219875383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6947206 + ... + 6951122.

It is an arithmetic number, because the mean of its divisors is an integer number (1329612480).

Almost surely, 2^27219875388 is an apocalyptic number.

It is an amenable number.

27219875388 is an abundant number, since it is smaller than the sum of its proper divisors (36601523652).

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

27219875388 is a wasteful number, since it uses less digits than its factorization.

27219875388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6586 (or 6584 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 60.

The spelling of 27219875388 in words is "twenty-seven billion, two hundred nineteen million, eight hundred seventy-five thousand, three hundred eighty-eight".