561250272267 has 20 divisors (see below), whose sum is σ = 842384437576. Its totient is φ = 372393534240.

The previous prime is 561250272197. The next prime is 561250272269. The reversal of 561250272267 is 762272052165.

561250272267 is a `hidden beast` number, since 5 + 6 + 12 + 502 + 72 + 2 + 67 = 666.

It is not a de Polignac number, because 561250272267 - 2¹⁰ = 561250271243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561250272269) 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 19 ways as a sum of consecutive naturals, for example, 16402378 + ... + 16436559.

Almost surely, 2^561250272267 is an apocalyptic number.

561250272267 is a deficient number, since it is larger than the sum of its proper divisors (281134165309).

561250272267 is a wasteful number, since it uses less digits than its factorization.

561250272267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32839160 (or 32839151 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 561250272267 in words is "five hundred sixty-one billion, two hundred fifty million, two hundred seventy-two thousand, two hundred sixty-seven".