27182472861 has 16 divisors (see below), whose sum is σ = 36887400000. Its totient is φ = 17800094208.

The previous prime is 27182472857. The next prime is 27182472893. The reversal of 27182472861 is 16827428172.

It is not a de Polignac number, because 27182472861 - 2² = 27182472857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27182472861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27182474861) 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, 159595 + ... + 282551.

It is an arithmetic number, because the mean of its divisors is an integer number (2305462500).

Almost surely, 2^27182472861 is an apocalyptic number.

It is an amenable number.

27182472861 is a deficient number, since it is larger than the sum of its proper divisors (9704927139).

27182472861 is a wasteful number, since it uses less digits than its factorization.

27182472861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124268.

The product of its digits is 602112, while the sum is 48.

The spelling of 27182472861 in words is "twenty-seven billion, one hundred eighty-two million, four hundred seventy-two thousand, eight hundred sixty-one".