48128669 has 4 divisors (see below), whose sum is σ = 48143196. Its totient is φ = 48114144.

The previous prime is 48128659. The next prime is 48128677. The reversal of 48128669 is 96682184.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 25452025 + 22676644 = 5045^2 + 4762^2 .

It is a cyclic number.

It is not a de Polignac number, because 48128669 - 2¹⁶ = 48063133 is a prime.

It is a super-2 number, since 2×48128669² = 4632737559423122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48128609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407 + ... + 9819.

It is an arithmetic number, because the mean of its divisors is an integer number (12035799).

Almost surely, 2^48128669 is an apocalyptic number.

It is an amenable number.

48128669 is a deficient number, since it is larger than the sum of its proper divisors (14527).

48128669 is an equidigital number, since it uses as much as digits as its factorization.

48128669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14526.

The product of its digits is 165888, while the sum is 44.

The square root of 48128669 is about 6937.4829008798. The cubic root of 48128669 is about 363.7485609072.

The spelling of 48128669 in words is "forty-eight million, one hundred twenty-eight thousand, six hundred sixty-nine".