561206489412 has 24 divisors (see below), whose sum is σ = 1386510150816. Its totient is φ = 176064780928.

The previous prime is 561206489383. The next prime is 561206489413. The reversal of 561206489412 is 214984602165.

It is not an unprimeable number, because it can be changed into a prime (561206489413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1375505898 + ... + 1375506305.

It is an arithmetic number, because the mean of its divisors is an integer number (57771256284).

Almost surely, 2^561206489412 is an apocalyptic number.

It is an amenable number.

561206489412 is an abundant number, since it is smaller than the sum of its proper divisors (825303661404).

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

561206489412 is a wasteful number, since it uses less digits than its factorization.

561206489412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751012227 (or 2751012225 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 561206489412 in words is "five hundred sixty-one billion, two hundred six million, four hundred eighty-nine thousand, four hundred twelve".