27540203744644 has 72 divisors (see below), whose sum is σ = 49989946537440. Its totient is φ = 13271859744000.

The previous prime is 27540203744633. The next prime is 27540203744681. The reversal of 27540203744644 is 44644730204572.

It is a junction number, because it is equal to n+sod(n) for n = 27540203744591 and 27540203744600.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 981776419 + ... + 981804469.

It is an arithmetic number, because the mean of its divisors is an integer number (694304813020).

Almost surely, 2^{27540203744644} is an apocalyptic number.

It is an amenable number.

27540203744644 is a deficient number, since it is larger than the sum of its proper divisors (22449742792796).

27540203744644 is a wasteful number, since it uses less digits than its factorization.

27540203744644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29701 (or 29646 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 52.

The spelling of 27540203744644 in words is "twenty-seven trillion, five hundred forty billion, two hundred three million, seven hundred forty-four thousand, six hundred forty-four".