27438772163 has 8 divisors (see below), whose sum is σ = 30089926656. Its totient is φ = 24813737800.

The previous prime is 27438772147. The next prime is 27438772177. The reversal of 27438772163 is 36127783472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27438772163 - 2⁴ = 27438772147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27438772133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6527831 + ... + 6532032.

It is an arithmetic number, because the mean of its divisors is an integer number (3761240832).

Almost surely, 2^27438772163 is an apocalyptic number.

27438772163 is a deficient number, since it is larger than the sum of its proper divisors (2651154493).

27438772163 is a wasteful number, since it uses less digits than its factorization.

27438772163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13060065.

The product of its digits is 2370816, while the sum is 50.

The spelling of 27438772163 in words is "twenty-seven billion, four hundred thirty-eight million, seven hundred seventy-two thousand, one hundred sixty-three".