8115450375811 has 4 divisors (see below), whose sum is σ = 8115458293800. Its totient is φ = 8115442457824.

The previous prime is 8115450375751. The next prime is 8115450375821. The reversal of 8115450375811 is 1185730545118.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8115450375811 - 2¹⁷ = 8115450244739 is a prime.

It is a super-3 number, since 3×8115450375811³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8115450375821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144326 + ... + 4563883.

It is an arithmetic number, because the mean of its divisors is an integer number (2028864573450).

Almost surely, 2^{8115450375811} is an apocalyptic number.

8115450375811 is a deficient number, since it is larger than the sum of its proper divisors (7917989).

8115450375811 is a wasteful number, since it uses less digits than its factorization.

8115450375811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7917988.

The product of its (nonzero) digits is 672000, while the sum is 49.

The spelling of 8115450375811 in words is "eight trillion, one hundred fifteen billion, four hundred fifty million, three hundred seventy-five thousand, eight hundred eleven".