561029780532 has 96 divisors (see below), whose sum is σ = 1495064680704. Its totient is φ = 162212198400.

The previous prime is 561029780501. The next prime is 561029780533. The reversal of 561029780532 is 235087920165.

561029780532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561029780533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1505782 + ... + 1841042.

It is an arithmetic number, because the mean of its divisors is an integer number (15573590424).

Almost surely, 2^561029780532 is an apocalyptic number.

561029780532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561029780532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747532340352).

561029780532 is an abundant number, since it is smaller than the sum of its proper divisors (934034900172).

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

561029780532 is a wasteful number, since it uses less digits than its factorization.

561029780532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335929 (or 335927 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 561029780532 in words is "five hundred sixty-one billion, twenty-nine million, seven hundred eighty thousand, five hundred thirty-two".