561543624576740 has 24 divisors (see below), whose sum is σ = 1269952504812600. Its totient is φ = 207339184459008.

The previous prime is 561543624576731. The next prime is 561543624576821. The reversal of 561543624576740 is 47675426345165.

It can be written as a sum of positive squares in 4 ways, for example, as 3150845103844 + 558392779472896 = 1775062^2 + 23630336^2 .

It is a Harshad number since it is a multiple of its sum of digits (65).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079891585465 + ... + 1079891585984.

It is an arithmetic number, because the mean of its divisors is an integer number (52914687700525).

Almost surely, 2^{561543624576740} is an apocalyptic number.

It is an amenable number.

561543624576740 is an abundant number, since it is smaller than the sum of its proper divisors (708408880235860).

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

561543624576740 is a wasteful number, since it uses less digits than its factorization.

561543624576740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159783171471 (or 2159783171469 counting only the distinct ones).

The product of its (nonzero) digits is 508032000, while the sum is 65.

The spelling of 561543624576740 in words is "five hundred sixty-one trillion, five hundred forty-three billion, six hundred twenty-four million, five hundred seventy-six thousand, seven hundred forty".