398560727547 has 24 divisors (see below), whose sum is σ = 589208615424. Its totient is φ = 259474413744.

The previous prime is 398560727501. The next prime is 398560727549. The reversal of 398560727547 is 745727065893.

398560727547 is a `hidden beast` number, since 3 + 9 + 8 + 5 + 60 + 7 + 27 + 547 = 666.

It is not a de Polignac number, because 398560727547 - 2¹⁴ = 398560711163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398560727549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1818558 + ... + 2025900.

It is an arithmetic number, because the mean of its divisors is an integer number (24550358976).

Almost surely, 2^398560727547 is an apocalyptic number.

398560727547 is a deficient number, since it is larger than the sum of its proper divisors (190647887877).

398560727547 is a wasteful number, since it uses less digits than its factorization.

398560727547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212359 (or 212356 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 63.

The spelling of 398560727547 in words is "three hundred ninety-eight billion, five hundred sixty million, seven hundred twenty-seven thousand, five hundred forty-seven".