8094791645 has 4 divisors (see below), whose sum is σ = 9713749980. Its totient is φ = 6475833312.

The previous prime is 8094791591. The next prime is 8094791647. The reversal of 8094791645 is 5461974908.

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 3571018564 + 4523773081 = 59758^2 + 67259^2 .

It is a cyclic number.

It is not a de Polignac number, because 8094791645 - 2¹⁰ = 8094790621 is a prime.

It is a super-4 number, since 4×8094791645⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8094791647) 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, 809479160 + ... + 809479169.

It is an arithmetic number, because the mean of its divisors is an integer number (2428437495).

Almost surely, 2^8094791645 is an apocalyptic number.

It is an amenable number.

8094791645 is a deficient number, since it is larger than the sum of its proper divisors (1618958335).

8094791645 is a wasteful number, since it uses less digits than its factorization.

8094791645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618958334.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 8094791645 is about 89971.0600415489. The cubic root of 8094791645 is about 2007.8683080204.

The spelling of 8094791645 in words is "eight billion, ninety-four million, seven hundred ninety-one thousand, six hundred forty-five".