27470989678 has 16 divisors (see below), whose sum is σ = 47318451840. Its totient is φ = 11829612600.

The previous prime is 27470989631. The next prime is 27470989681. The reversal of 27470989678 is 87698907472.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 32859618 + ... + 32860453.

It is an arithmetic number, because the mean of its divisors is an integer number (2957403240).

Almost surely, 2^27470989678 is an apocalyptic number.

27470989678 is a deficient number, since it is larger than the sum of its proper divisors (19847462162).

27470989678 is a wasteful number, since it uses less digits than its factorization.

27470989678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65720103.

The product of its (nonzero) digits is 85349376, while the sum is 67.

The spelling of 27470989678 in words is "twenty-seven billion, four hundred seventy million, nine hundred eighty-nine thousand, six hundred seventy-eight".