27488271297861 has 16 divisors (see below), whose sum is σ = 44425488966720. Its totient is φ = 16659558362160.

The previous prime is 27488271297857. The next prime is 27488271297887. The reversal of 27488271297861 is 16879217288472.

27488271297861 is a `hidden beast` number, since 2 + 7 + 4 + 8 + 8 + 271 + 297 + 8 + 61 = 666.

It is not a de Polignac number, because 27488271297861 - 2² = 27488271297857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27488271297861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27488271297821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46276550710 + ... + 46276551303.

It is an arithmetic number, because the mean of its divisors is an integer number (2776593060420).

Almost surely, 2^{27488271297861} is an apocalyptic number.

It is an amenable number.

27488271297861 is a deficient number, since it is larger than the sum of its proper divisors (16937217668859).

27488271297861 is a wasteful number, since it uses less digits than its factorization.

27488271297861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92553102033 (or 92553102027 counting only the distinct ones).

The product of its digits is 303464448, while the sum is 72.

The spelling of 27488271297861 in words is "twenty-seven trillion, four hundred eighty-eight billion, two hundred seventy-one million, two hundred ninety-seven thousand, eight hundred sixty-one".