548649548649 has 24 divisors (see below), whose sum is σ = 800434230024. Its totient is φ = 362102400000.

The previous prime is 548649548639. The next prime is 548649548659. The reversal of 548649548649 is 946845946845.

548649548649 is a `hidden beast` number, since 5 + 48 + 64 + 9 + 5 + 486 + 49 = 666.

It is an interprime number because it is at equal distance from previous prime (548649548639) and next prime (548649548659).

It can be written as a sum of positive squares in 4 ways, for example, as 183446886249 + 365202662400 = 428307^2 + 604320^2 .

It is not a de Polignac number, because 548649548649 - 2⁵ = 548649548617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (548649548639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8969529 + ... + 9030489.

It is an arithmetic number, because the mean of its divisors is an integer number (33351426251).

Almost surely, 2^548649548649 is an apocalyptic number.

It is an amenable number.

548649548649 is a deficient number, since it is larger than the sum of its proper divisors (251784681375).

548649548649 is a wasteful number, since it uses less digits than its factorization.

548649548649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70969 (or 70966 counting only the distinct ones).

The product of its digits is 1194393600, while the sum is 72.

The spelling of 548649548649 in words is "five hundred forty-eight billion, six hundred forty-nine million, five hundred forty-eight thousand, six hundred forty-nine".