8116378243 has 12 divisors (see below), whose sum is σ = 8394027600. Its totient is φ = 7847645040.

The previous prime is 8116378223. The next prime is 8116378261. The reversal of 8116378243 is 3428736118.

It is not a de Polignac number, because 8116378243 - 2¹³ = 8116370051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8116378243.

It is not an unprimeable number, because it can be changed into a prime (8116378223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1341421 + ... + 1347457.

It is an arithmetic number, because the mean of its divisors is an integer number (699502300).

Almost surely, 2^8116378243 is an apocalyptic number.

8116378243 is a deficient number, since it is larger than the sum of its proper divisors (277649357).

8116378243 is a wasteful number, since it uses less digits than its factorization.

8116378243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7498 (or 7467 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 8116378243 is about 90090.9442896454. The cubic root of 8116378243 is about 2009.6515359221.

The spelling of 8116378243 in words is "eight billion, one hundred sixteen million, three hundred seventy-eight thousand, two hundred forty-three".