4261489345 has 4 divisors (see below), whose sum is σ = 5113787220. Its totient is φ = 3409191472.

The previous prime is 4261489339. The next prime is 4261489357. The reversal of 4261489345 is 5439841624.

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 3266465409 + 995023936 = 57153^2 + 31544^2 .

It is a cyclic number.

It is not a de Polignac number, because 4261489345 - 2⁵ = 4261489313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4261489295 and 4261489304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426148930 + ... + 426148939.

It is an arithmetic number, because the mean of its divisors is an integer number (1278446805).

Almost surely, 2^4261489345 is an apocalyptic number.

It is an amenable number.

4261489345 is a deficient number, since it is larger than the sum of its proper divisors (852297875).

4261489345 is an equidigital number, since it uses as much as digits as its factorization.

4261489345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852297874.

The product of its digits is 829440, while the sum is 46.

The square root of 4261489345 is about 65280.0838311349. The cubic root of 4261489345 is about 1621.2642350364.

The spelling of 4261489345 in words is "four billion, two hundred sixty-one million, four hundred eighty-nine thousand, three hundred forty-five".