4631221265 has 16 divisors (see below), whose sum is σ = 6271750080. Its totient is φ = 3252016320.

The previous prime is 4631221261. The next prime is 4631221289. The reversal of 4631221265 is 5621221364.

It is not a de Polignac number, because 4631221265 - 2² = 4631221261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4631221261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450199 + ... + 1453388.

It is an arithmetic number, because the mean of its divisors is an integer number (391984380).

Almost surely, 2^4631221265 is an apocalyptic number.

It is an amenable number.

4631221265 is a deficient number, since it is larger than the sum of its proper divisors (1640528815).

4631221265 is a wasteful number, since it uses less digits than its factorization.

4631221265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903632.

The product of its digits is 17280, while the sum is 32.

The square root of 4631221265 is about 68053.0768224332. The cubic root of 4631221265 is about 1666.8576410276.

Subtracting 4631221265 from its reverse (5621221364), we obtain a palindrome (990000099).

The spelling of 4631221265 in words is "four billion, six hundred thirty-one million, two hundred twenty-one thousand, two hundred sixty-five".