27138063671 has 8 divisors (see below), whose sum is σ = 28144585920. Its totient is φ = 26136256608.

The previous prime is 27138063643. The next prime is 27138063683. The reversal of 27138063671 is 17636083172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27138063671 is a prime.

It is a super-2 number, since 2×27138063671² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27138063691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167071 + ... + 1190096.

It is an arithmetic number, because the mean of its divisors is an integer number (3518073240).

Almost surely, 2^27138063671 is an apocalyptic number.

27138063671 is a deficient number, since it is larger than the sum of its proper divisors (1006522249).

27138063671 is a wasteful number, since it uses less digits than its factorization.

27138063671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357593.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 27138063671 in words is "twenty-seven billion, one hundred thirty-eight million, sixty-three thousand, six hundred seventy-one".