8106393965 has 8 divisors (see below), whose sum is σ = 9728290968. Its totient is φ = 6484703040.

The previous prime is 8106393941. The next prime is 8106393979. The reversal of 8106393965 is 5693936018.

It can be written as a sum of positive squares in 4 ways, for example, as 61559716 + 8044834249 = 7846^2 + 89693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8106393965 - 2²⁸ = 7837958509 is a prime.

It is a Duffinian number.

It is a congruent 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, 55079 + ... + 138731.

It is an arithmetic number, because the mean of its divisors is an integer number (1216036371).

Almost surely, 2^8106393965 is an apocalyptic number.

It is an amenable number.

8106393965 is a deficient number, since it is larger than the sum of its proper divisors (1621897003).

8106393965 is a wasteful number, since it uses less digits than its factorization.

8106393965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103039.

The product of its (nonzero) digits is 1049760, while the sum is 50.

The square root of 8106393965 is about 90035.5150204629. The cubic root of 8106393965 is about 2008.8271471699.

The spelling of 8106393965 in words is "eight billion, one hundred six million, three hundred ninety-three thousand, nine hundred sixty-five".