27812885158 has 16 divisors (see below), whose sum is σ = 42821107200. Its totient is φ = 13542156936.

The previous prime is 27812885153. The next prime is 27812885183. The reversal of 27812885158 is 85158821872.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27812885099 and 27812885108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27812885153) 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, 724716 + ... + 762127.

It is an arithmetic number, because the mean of its divisors is an integer number (2676319200).

Almost surely, 2^27812885158 is an apocalyptic number.

27812885158 is a deficient number, since it is larger than the sum of its proper divisors (15008222042).

27812885158 is a wasteful number, since it uses less digits than its factorization.

27812885158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487091.

The product of its digits is 2867200, while the sum is 55.

The spelling of 27812885158 in words is "twenty-seven billion, eight hundred twelve million, eight hundred eighty-five thousand, one hundred fifty-eight".