561868526219 has 24 divisors (see below), whose sum is σ = 760112045280. Its totient is φ = 404141189760.

The previous prime is 561868526183. The next prime is 561868526221. The reversal of 561868526219 is 912625868165.

It is not a de Polignac number, because 561868526219 - 2²⁴ = 561851749003 is a prime.

It is a super-2 number, since 2×561868526219² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561868526279) 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, 25502954 + ... + 25524975.

It is an arithmetic number, because the mean of its divisors is an integer number (31671335220).

Almost surely, 2^561868526219 is an apocalyptic number.

561868526219 is a deficient number, since it is larger than the sum of its proper divisors (198243519061).

561868526219 is a wasteful number, since it uses less digits than its factorization.

561868526219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51027971 (or 51027960 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 59.

The spelling of 561868526219 in words is "five hundred sixty-one billion, eight hundred sixty-eight million, five hundred twenty-six thousand, two hundred nineteen".