4264623641 has 4 divisors (see below), whose sum is σ = 4345088292. Its totient is φ = 4184158992.

The previous prime is 4264623617. The next prime is 4264623647. The reversal of 4264623641 is 1463264624.

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 3303375625 + 961248016 = 57475^2 + 31004^2 .

It is a cyclic number.

It is not a de Polignac number, because 4264623641 - 2¹⁰ = 4264622617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4264623595 and 4264623604.

It is not an unprimeable number, because it can be changed into a prime (4264623647) by changing a digit.

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, 40232246 + ... + 40232351.

It is an arithmetic number, because the mean of its divisors is an integer number (1086272073).

Almost surely, 2^4264623641 is an apocalyptic number.

It is an amenable number.

4264623641 is a deficient number, since it is larger than the sum of its proper divisors (80464651).

4264623641 is an equidigital number, since it uses as much as digits as its factorization.

4264623641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80464650.

The product of its digits is 165888, while the sum is 38.

The square root of 4264623641 is about 65304.0859441429. The cubic root of 4264623641 is about 1621.6616138475.

The spelling of 4264623641 in words is "four billion, two hundred sixty-four million, six hundred twenty-three thousand, six hundred forty-one".