27143894952 has 24 divisors (see below), whose sum is σ = 73514715690. Its totient is φ = 9047964960.

The previous prime is 27143894929. The next prime is 27143895013. The reversal of 27143894952 is 25949834172.

27143894952 is a `hidden beast` number, since 2 + 7 + 143 + 8 + 9 + 495 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26710672356 + 433222596 = 163434^2 + 20814^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×27143894952² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188499199 + ... + 188499342.

Almost surely, 2^27143894952 is an apocalyptic number.

It is an amenable number.

27143894952 is an abundant number, since it is smaller than the sum of its proper divisors (46370820738).

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

27143894952 is a wasteful number, since it uses less digits than its factorization.

27143894952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376998553 (or 376998546 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 27143894952 in words is "twenty-seven billion, one hundred forty-three million, eight hundred ninety-four thousand, nine hundred fifty-two".