48609728549 has 8 divisors (see below), whose sum is σ = 51535721880. Its totient is φ = 45691134976.

The previous prime is 48609728423. The next prime is 48609728581. The reversal of 48609728549 is 94582790684.

It can be written as a sum of positive squares in 4 ways, for example, as 7393420225 + 41216308324 = 85985^2 + 203018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48609728549 - 2¹⁶ = 48609663013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48609728491 and 48609728500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48609728599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1836404 + ... + 1862685.

It is an arithmetic number, because the mean of its divisors is an integer number (6441965235).

Almost surely, 2^48609728549 is an apocalyptic number.

It is an amenable number.

48609728549 is a deficient number, since it is larger than the sum of its proper divisors (2925993331).

48609728549 is a wasteful number, since it uses less digits than its factorization.

48609728549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699879.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 48609728549 in words is "forty-eight billion, six hundred nine million, seven hundred twenty-eight thousand, five hundred forty-nine".