27675641263 has 6 divisors (see below), whose sum is σ = 28013107064. Its totient is φ = 27342192996.

The previous prime is 27675641221. The next prime is 27675641297. The reversal of 27675641263 is 36214657672.

It is not a de Polignac number, because 27675641263 - 2²¹ = 27673544111 is a prime.

It is a super-2 number, since 2×27675641263² (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 (27675641563) 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 5 ways as a sum of consecutive naturals, for example, 2001795 + ... + 2015572.

Almost surely, 2^27675641263 is an apocalyptic number.

27675641263 is a deficient number, since it is larger than the sum of its proper divisors (337465801).

27675641263 is an frugal number, since it uses more digits than its factorization.

27675641263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017533 (or 4017450 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 49.

The spelling of 27675641263 in words is "twenty-seven billion, six hundred seventy-five million, six hundred forty-one thousand, two hundred sixty-three".