27149504318 has 4 divisors (see below), whose sum is σ = 40724256480. Its totient is φ = 13574752158.

The previous prime is 27149504311. The next prime is 27149504321. The reversal of 27149504318 is 81340594172.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27149504311) 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 as a sum of consecutive naturals, namely, 6787376078 + ... + 6787376081.

It is an arithmetic number, because the mean of its divisors is an integer number (10181064120).

Almost surely, 2^27149504318 is an apocalyptic number.

27149504318 is a deficient number, since it is larger than the sum of its proper divisors (13574752162).

27149504318 is a wasteful number, since it uses less digits than its factorization.

27149504318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13574752161.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 27149504318 in words is "twenty-seven billion, one hundred forty-nine million, five hundred four thousand, three hundred eighteen".