63128469 has 16 divisors (see below), whose sum is σ = 89208000. Its totient is φ = 39597696.

The previous prime is 63128449. The next prime is 63128489. The reversal of 63128469 is 96482136.

63128469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63128449) and next prime (63128489).

It is not a de Polignac number, because 63128469 - 2⁷ = 63128341 is a prime.

It is a super-2 number, since 2×63128469² = 7970407196567922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63128449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4777 + ... + 12209.

It is an arithmetic number, because the mean of its divisors is an integer number (5575500).

Almost surely, 2^63128469 is an apocalyptic number.

It is an amenable number.

63128469 is a deficient number, since it is larger than the sum of its proper divisors (26079531).

63128469 is a wasteful number, since it uses less digits than its factorization.

63128469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7604.

The product of its digits is 62208, while the sum is 39.

The square root of 63128469 is about 7945.3425980256. The cubic root of 63128469 is about 398.1760056708.

The spelling of 63128469 in words is "sixty-three million, one hundred twenty-eight thousand, four hundred sixty-nine".