27478642134 has 16 divisors (see below), whose sum is σ = 55161589680. Its totient is φ = 9125496480.

The previous prime is 27478642057. The next prime is 27478642151. The reversal of 27478642134 is 43124687472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8510977 + ... + 8514204.

It is an arithmetic number, because the mean of its divisors is an integer number (3447599355).

Almost surely, 2^27478642134 is an apocalyptic number.

27478642134 is an abundant number, since it is smaller than the sum of its proper divisors (27682947546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27478642134 is a wasteful number, since it uses less digits than its factorization.

27478642134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17025455.

The product of its digits is 1806336, while the sum is 48.

The spelling of 27478642134 in words is "twenty-seven billion, four hundred seventy-eight million, six hundred forty-two thousand, one hundred thirty-four".