27870332071 has 4 divisors (see below), whose sum is σ = 27871372000. Its totient is φ = 27869292144.

The previous prime is 27870332059. The next prime is 27870332089. The reversal of 27870332071 is 17023307872.

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 27870332071 - 2¹⁷ = 27870200999 is a prime.

It is a super-2 number, since 2×27870332071² (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 (27870332771) 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 3 ways as a sum of consecutive naturals, for example, 478671 + ... + 533728.

It is an arithmetic number, because the mean of its divisors is an integer number (6967843000).

Almost surely, 2^27870332071 is an apocalyptic number.

27870332071 is a deficient number, since it is larger than the sum of its proper divisors (1039929).

27870332071 is a wasteful number, since it uses less digits than its factorization.

27870332071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039928.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 27870332071 in words is "twenty-seven billion, eight hundred seventy million, three hundred thirty-two thousand, seventy-one".