27731327774 has 4 divisors (see below), whose sum is σ = 41596991664. Its totient is φ = 13865663886.

The previous prime is 27731327761. The next prime is 27731327837. The reversal of 27731327774 is 47772313772.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 6932831942 + ... + 6932831945.

It is an arithmetic number, because the mean of its divisors is an integer number (10399247916).

Almost surely, 2^27731327774 is an apocalyptic number.

27731327774 is a deficient number, since it is larger than the sum of its proper divisors (13865663890).

27731327774 is a wasteful number, since it uses less digits than its factorization.

27731327774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13865663889.

The product of its digits is 2420208, while the sum is 50.

The spelling of 27731327774 in words is "twenty-seven billion, seven hundred thirty-one million, three hundred twenty-seven thousand, seven hundred seventy-four".