27771246131 has 8 divisors (see below), whose sum is σ = 27968615280. Its totient is φ = 27574428672.

The previous prime is 27771246101. The next prime is 27771246149. The reversal of 27771246131 is 13164217772.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27771246131 - 2¹⁰ = 27771245107 is a prime.

It is a super-2 number, since 2×27771246131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27771246101) 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, 36626 + ... + 238503.

It is an arithmetic number, because the mean of its divisors is an integer number (3496076910).

Almost surely, 2^27771246131 is an apocalyptic number.

27771246131 is a deficient number, since it is larger than the sum of its proper divisors (197369149).

27771246131 is a wasteful number, since it uses less digits than its factorization.

27771246131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275845.

The product of its digits is 98784, while the sum is 41.

The spelling of 27771246131 in words is "twenty-seven billion, seven hundred seventy-one million, two hundred forty-six thousand, one hundred thirty-one".