561688846382238 has 16 divisors (see below), whose sum is σ = 1142417992642560. Its totient is φ = 184056232147736.

The previous prime is 561688846382207. The next prime is 561688846382267. The reversal of 561688846382238 is 832283648886165.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793345827870 + ... + 793345828577.

It is an arithmetic number, because the mean of its divisors is an integer number (71401124540160).

Almost surely, 2^{561688846382238} is an apocalyptic number.

561688846382238 is an abundant number, since it is smaller than the sum of its proper divisors (580729146260322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561688846382238 is a wasteful number, since it uses less digits than its factorization.

561688846382238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586691656511.

The product of its digits is 5096079360, while the sum is 78.

The spelling of 561688846382238 in words is "five hundred sixty-one trillion, six hundred eighty-eight billion, eight hundred forty-six million, three hundred eighty-two thousand, two hundred thirty-eight".