4521506369 has 2 divisors, whose sum is σ = 4521506370. Its totient is φ = 4521506368.

The previous prime is 4521506351. The next prime is 4521506411. The reversal of 4521506369 is 9636051254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4094464144 + 427042225 = 63988^2 + 20665^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521506369 - 2²⁰ = 4520457793 is a prime.

It is a super-2 number, since 2×4521506369² = 40888039689815128322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4521506309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260753184 + 2260753185.

It is an arithmetic number, because the mean of its divisors is an integer number (2260753185).

Almost surely, 2^4521506369 is an apocalyptic number.

It is an amenable number.

4521506369 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521506369 is an equidigital number, since it uses as much as digits as its factorization.

4521506369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 4521506369 is about 67242.1472664281. The cubic root of 4521506369 is about 1653.5895369587.

The spelling of 4521506369 in words is "four billion, five hundred twenty-one million, five hundred six thousand, three hundred sixty-nine".