561676531306 has 32 divisors (see below), whose sum is σ = 936710925696. Its totient is φ = 250420248000.

The previous prime is 561676531289. The next prime is 561676531309. The reversal of 561676531306 is 603135676165.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 561676531306.

It is not an unprimeable number, because it can be changed into a prime (561676531309) 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 15 ways as a sum of consecutive naturals, for example, 4214776 + ... + 4345996.

It is an arithmetic number, because the mean of its divisors is an integer number (29272216428).

Almost surely, 2^561676531306 is an apocalyptic number.

561676531306 is a deficient number, since it is larger than the sum of its proper divisors (375034394390).

561676531306 is a wasteful number, since it uses less digits than its factorization.

561676531306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134958.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 561676531306 in words is "five hundred sixty-one billion, six hundred seventy-six million, five hundred thirty-one thousand, three hundred six".