561670868 has 36 divisors (see below), whose sum is σ = 1103436096. Its totient is φ = 249862800.

The previous prime is 561670861. The next prime is 561670891. The reversal of 561670868 is 868076165.

561670868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561670861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10403 + ... + 35093.

Almost surely, 2^561670868 is an apocalyptic number.

It is an amenable number.

561670868 is a deficient number, since it is larger than the sum of its proper divisors (541765228).

561670868 is a wasteful number, since it uses less digits than its factorization.

561670868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24764 (or 24751 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 561670868 is about 23699.5963678709. The cubic root of 561670868 is about 825.0760226240.

The spelling of 561670868 in words is "five hundred sixty-one million, six hundred seventy thousand, eight hundred sixty-eight".