27865082972159 has 4 divisors (see below), whose sum is σ = 28337372514120. Its totient is φ = 27392793430200.

The previous prime is 27865082972143. The next prime is 27865082972179. The reversal of 27865082972159 is 95127928056872.

It is a happy number.

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 27865082972159 - 2⁴ = 27865082972143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27865082972092 and 27865082972101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27865082972179) 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, 236144770892 + ... + 236144771009.

It is an arithmetic number, because the mean of its divisors is an integer number (7084343128530).

Almost surely, 2^{27865082972159} is an apocalyptic number.

27865082972159 is a deficient number, since it is larger than the sum of its proper divisors (472289541961).

27865082972159 is an equidigital number, since it uses as much as digits as its factorization.

27865082972159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472289541960.

The product of its (nonzero) digits is 304819200, while the sum is 71.

The spelling of 27865082972159 in words is "twenty-seven trillion, eight hundred sixty-five billion, eighty-two million, nine hundred seventy-two thousand, one hundred fifty-nine".