548648061227581 has 8 divisors (see below), whose sum is σ = 642319681437504. Its totient is φ = 458799772454880.

The previous prime is 548648061227569. The next prime is 548648061227597. The reversal of 548648061227581 is 185722160846845.

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 548648061227581 - 2¹³ = 548648061219389 is a prime.

It is a super-2 number, since 2×548648061227581² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548648061227501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955832858995 + ... + 955832859568.

It is an arithmetic number, because the mean of its divisors is an integer number (80289960179688).

Almost surely, 2^{548648061227581} is an apocalyptic number.

It is an amenable number.

548648061227581 is a deficient number, since it is larger than the sum of its proper divisors (93671620209923).

548648061227581 is a wasteful number, since it uses less digits than its factorization.

548648061227581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911665718611.

The product of its (nonzero) digits is 206438400, while the sum is 67.

The spelling of 548648061227581 in words is "five hundred forty-eight trillion, six hundred forty-eight billion, sixty-one million, two hundred twenty-seven thousand, five hundred eighty-one".