27995823412 has 48 divisors (see below), whose sum is σ = 51400597248. Its totient is φ = 13329066240.

The previous prime is 27995823389. The next prime is 27995823419. The reversal of 27995823412 is 21432859972.

It is a happy number.

It is a super-2 number, since 2×27995823412² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27995823412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27995823419) 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 15 ways as a sum of consecutive naturals, for example, 1429873 + ... + 1449319.

It is an arithmetic number, because the mean of its divisors is an integer number (1070845776).

Almost surely, 2^27995823412 is an apocalyptic number.

It is an amenable number.

27995823412 is a deficient number, since it is larger than the sum of its proper divisors (23404773836).

27995823412 is a wasteful number, since it uses less digits than its factorization.

27995823412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19696 (or 19694 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 27995823412 in words is "twenty-seven billion, nine hundred ninety-five million, eight hundred twenty-three thousand, four hundred twelve".