8115440345 has 8 divisors (see below), whose sum is σ = 9739858176. Its totient is φ = 6491465776.

The previous prime is 8115440339. The next prime is 8115440423. The reversal of 8115440345 is 5430445118.

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 8115440345 - 2¹⁴ = 8115423961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69107 + ... + 144936.

It is an arithmetic number, because the mean of its divisors is an integer number (1217482272).

Almost surely, 2^8115440345 is an apocalyptic number.

It is an amenable number.

8115440345 is a deficient number, since it is larger than the sum of its proper divisors (1624417831).

8115440345 is a wasteful number, since it uses less digits than its factorization.

8115440345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221631.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 8115440345 is about 90085.7388547155. The cubic root of 8115440345 is about 2009.5741236943.

The spelling of 8115440345 in words is "eight billion, one hundred fifteen million, four hundred forty thousand, three hundred forty-five".