27428163338 has 4 divisors (see below), whose sum is σ = 41142245010. Its totient is φ = 13714081668.

The previous prime is 27428163319. The next prime is 27428163349. The reversal of 27428163338 is 83336182472.

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

It can be written as a sum of positive squares in only one way, i.e., 15661771609 + 11766391729 = 125147^2 + 108473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27428163292 and 27428163301.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6857040833 + ... + 6857040836.

Almost surely, 2^27428163338 is an apocalyptic number.

27428163338 is a deficient number, since it is larger than the sum of its proper divisors (13714081672).

27428163338 is a wasteful number, since it uses less digits than its factorization.

27428163338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13714081671.

The product of its digits is 1161216, while the sum is 47.

The spelling of 27428163338 in words is "twenty-seven billion, four hundred twenty-eight million, one hundred sixty-three thousand, three hundred thirty-eight".