8105444623 has 4 divisors (see below), whose sum is σ = 8105626120. Its totient is φ = 8105263128.

The previous prime is 8105444621. The next prime is 8105444629. The reversal of 8105444623 is 3264445018.

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

It is a cyclic number.

It is not a de Polignac number, because 8105444623 - 2¹ = 8105444621 is a prime.

It is a super-2 number, since 2×8105444623² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8105444621) 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, 28288 + ... + 130426.

It is an arithmetic number, because the mean of its divisors is an integer number (2026406530).

Almost surely, 2^8105444623 is an apocalyptic number.

8105444623 is a deficient number, since it is larger than the sum of its proper divisors (181497).

8105444623 is a wasteful number, since it uses less digits than its factorization.

8105444623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181496.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 8105444623 is about 90030.2428242866. The cubic root of 8105444623 is about 2008.7487260108.

The spelling of 8105444623 in words is "eight billion, one hundred five million, four hundred forty-four thousand, six hundred twenty-three".