4194539345 has 4 divisors (see below), whose sum is σ = 5033447220. Its totient is φ = 3355631472.

The previous prime is 4194539329. The next prime is 4194539347. The reversal of 4194539345 is 5439354914.

4194539345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 455950609 + 3738588736 = 21353^2 + 61144^2 .

It is a cyclic number.

It is not a de Polignac number, because 4194539345 - 2⁴ = 4194539329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4194539345.

It is not an unprimeable number, because it can be changed into a prime (4194539347) 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, 419453930 + ... + 419453939.

It is an arithmetic number, because the mean of its divisors is an integer number (1258361805).

Almost surely, 2^4194539345 is an apocalyptic number.

It is an amenable number.

4194539345 is a deficient number, since it is larger than the sum of its proper divisors (838907875).

4194539345 is an equidigital number, since it uses as much as digits as its factorization.

4194539345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838907874.

The product of its digits is 1166400, while the sum is 47.

The square root of 4194539345 is about 64765.2634133453. The cubic root of 4194539345 is about 1612.7291064808.

The spelling of 4194539345 in words is "four billion, one hundred ninety-four million, five hundred thirty-nine thousand, three hundred forty-five".