27775071238 has 4 divisors (see below), whose sum is σ = 41662606860. Its totient is φ = 13887535618.

The previous prime is 27775071187. The next prime is 27775071253. The reversal of 27775071238 is 83217057772.

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

It is a junction number, because it is equal to n+sod(n) for n = 27775071191 and 27775071200.

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, 6943767808 + ... + 6943767811.

It is an arithmetic number, because the mean of its divisors is an integer number (10415651715).

Almost surely, 2^27775071238 is an apocalyptic number.

27775071238 is a deficient number, since it is larger than the sum of its proper divisors (13887535622).

27775071238 is a wasteful number, since it uses less digits than its factorization.

27775071238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13887535621.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The spelling of 27775071238 in words is "twenty-seven billion, seven hundred seventy-five million, seventy-one thousand, two hundred thirty-eight".