27671890942 has 4 divisors (see below), whose sum is σ = 41507836416. Its totient is φ = 13835945470.

The previous prime is 27671890907. The next prime is 27671890957. The reversal of 27671890942 is 24909817672.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6917972734 + ... + 6917972737.

It is an arithmetic number, because the mean of its divisors is an integer number (10376959104).

Almost surely, 2^27671890942 is an apocalyptic number.

27671890942 is a deficient number, since it is larger than the sum of its proper divisors (13835945474).

27671890942 is a wasteful number, since it uses less digits than its factorization.

27671890942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13835945473.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 27671890942 in words is "twenty-seven billion, six hundred seventy-one million, eight hundred ninety thousand, nine hundred forty-two".