27660532463 has 4 divisors (see below), whose sum is σ = 27661644480. Its totient is φ = 27659420448.

The previous prime is 27660532439. The next prime is 27660532469. The reversal of 27660532463 is 36423506672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27660532463 - 2¹⁶ = 27660466927 is a prime.

It is a super-2 number, since 2×27660532463² (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 (27660532469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517823 + ... + 568736.

It is an arithmetic number, because the mean of its divisors is an integer number (6915411120).

Almost surely, 2^27660532463 is an apocalyptic number.

27660532463 is a deficient number, since it is larger than the sum of its proper divisors (1112017).

27660532463 is a wasteful number, since it uses less digits than its factorization.

27660532463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112016.

The product of its (nonzero) digits is 1088640, while the sum is 44.

The spelling of 27660532463 in words is "twenty-seven billion, six hundred sixty million, five hundred thirty-two thousand, four hundred sixty-three".