27649942946 has 4 divisors (see below), whose sum is σ = 41474914422. Its totient is φ = 13824971472.

The previous prime is 27649942921. The next prime is 27649942951. The reversal of 27649942946 is 64924994672.

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

It can be written as a sum of positive squares in only one way, i.e., 21399301225 + 6250641721 = 146285^2 + 79061^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6912485735 + ... + 6912485738.

Almost surely, 2^27649942946 is an apocalyptic number.

27649942946 is a deficient number, since it is larger than the sum of its proper divisors (13824971476).

27649942946 is a wasteful number, since it uses less digits than its factorization.

27649942946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13824971475.

The product of its digits is 47029248, while the sum is 62.

The spelling of 27649942946 in words is "twenty-seven billion, six hundred forty-nine million, nine hundred forty-two thousand, nine hundred forty-six".