561730535547 has 8 divisors (see below), whose sum is σ = 749292633600. Its totient is φ = 374327730600.

The previous prime is 561730535537. The next prime is 561730535557. The reversal of 561730535547 is 745535037165.

It is an interprime number because it is at equal distance from previous prime (561730535537) and next prime (561730535557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561730535547 - 2¹⁹ = 561730011259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561730535547.

It is not an unprimeable number, because it can be changed into a prime (561730535537) 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, 39815047 + ... + 39829152.

It is an arithmetic number, because the mean of its divisors is an integer number (93661579200).

Almost surely, 2^561730535547 is an apocalyptic number.

561730535547 is a deficient number, since it is larger than the sum of its proper divisors (187562098053).

561730535547 is a wasteful number, since it uses less digits than its factorization.

561730535547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79646553.

The product of its (nonzero) digits is 6615000, while the sum is 51.

The spelling of 561730535547 in words is "five hundred sixty-one billion, seven hundred thirty million, five hundred thirty-five thousand, five hundred forty-seven".