27912968143 has 8 divisors (see below), whose sum is σ = 28252466928. Its totient is φ = 27573545664.

The previous prime is 27912968119. The next prime is 27912968159. The reversal of 27912968143 is 34186921972.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27912968143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27912968113) 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, 1144371 + ... + 1168507.

It is an arithmetic number, because the mean of its divisors is an integer number (3531558366).

Almost surely, 2^27912968143 is an apocalyptic number.

27912968143 is a deficient number, since it is larger than the sum of its proper divisors (339498785).

27912968143 is a wasteful number, since it uses less digits than its factorization.

27912968143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38153.

The product of its digits is 1306368, while the sum is 52.

The spelling of 27912968143 in words is "twenty-seven billion, nine hundred twelve million, nine hundred sixty-eight thousand, one hundred forty-three".