27164018542 has 4 divisors (see below), whose sum is σ = 40746027816. Its totient is φ = 13582009270.

The previous prime is 27164018513. The next prime is 27164018549. The reversal of 27164018542 is 24581046172.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 27164018495 and 27164018504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27164018549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6791004634 + ... + 6791004637.

It is an arithmetic number, because the mean of its divisors is an integer number (10186506954).

Almost surely, 2^27164018542 is an apocalyptic number.

27164018542 is a deficient number, since it is larger than the sum of its proper divisors (13582009274).

27164018542 is a wasteful number, since it uses less digits than its factorization.

27164018542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13582009273.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 27164018542 in words is "twenty-seven billion, one hundred sixty-four million, eighteen thousand, five hundred forty-two".