4191923345 has 4 divisors (see below), whose sum is σ = 5030308020. Its totient is φ = 3353538672.

The previous prime is 4191923321. The next prime is 4191923357. The reversal of 4191923345 is 5433291914.

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 3032044096 + 1159879249 = 55064^2 + 34057^2 .

It is a cyclic number.

It is not a de Polignac number, because 4191923345 - 2¹⁰ = 4191922321 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419192330 + ... + 419192339.

It is an arithmetic number, because the mean of its divisors is an integer number (1257577005).

Almost surely, 2^4191923345 is an apocalyptic number.

It is an amenable number.

4191923345 is a deficient number, since it is larger than the sum of its proper divisors (838384675).

4191923345 is an equidigital number, since it uses as much as digits as its factorization.

4191923345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838384674.

The product of its digits is 116640, while the sum is 41.

The square root of 4191923345 is about 64745.0642520339. The cubic root of 4191923345 is about 1612.3937675743.

The spelling of 4191923345 in words is "four billion, one hundred ninety-one million, nine hundred twenty-three thousand, three hundred forty-five".