8101814405 has 4 divisors (see below), whose sum is σ = 9722177292. Its totient is φ = 6481451520.

The previous prime is 8101814393. The next prime is 8101814431. The reversal of 8101814405 is 5044181018.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6015243364 + 2086571041 = 77558^2 + 45679^2 .

It is not a de Polignac number, because 8101814405 - 2¹⁰ = 8101813381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810181436 + ... + 810181445.

It is an arithmetic number, because the mean of its divisors is an integer number (2430544323).

Almost surely, 2^8101814405 is an apocalyptic number.

It is an amenable number.

8101814405 is a deficient number, since it is larger than the sum of its proper divisors (1620362887).

8101814405 is a wasteful number, since it uses less digits than its factorization.

8101814405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620362886.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 8101814405 is about 90010.0794633579. The cubic root of 8101814405 is about 2008.4487924454.

The spelling of 8101814405 in words is "eight billion, one hundred one million, eight hundred fourteen thousand, four hundred five".