561123000892 has 12 divisors (see below), whose sum is σ = 983728209240. Its totient is φ = 280057798256.

The previous prime is 561123000871. The next prime is 561123000929. The reversal of 561123000892 is 298000321165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125923042 + ... + 125927497.

It is an arithmetic number, because the mean of its divisors is an integer number (81977350770).

Almost surely, 2^561123000892 is an apocalyptic number.

It is an amenable number.

561123000892 is a deficient number, since it is larger than the sum of its proper divisors (422605208348).

561123000892 is a wasteful number, since it uses less digits than its factorization.

561123000892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251851100 (or 251851098 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 561123000892 in words is "five hundred sixty-one billion, one hundred twenty-three million, eight hundred ninety-two", and thus it is an aban number.