561672708026 has 4 divisors (see below), whose sum is σ = 842509062042. Its totient is φ = 280836354012.

The previous prime is 561672707963. The next prime is 561672708053. The reversal of 561672708026 is 620807276165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 414446250625 + 147226457401 = 643775^2 + 383701^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140418177005 + ... + 140418177008.

Almost surely, 2^561672708026 is an apocalyptic number.

561672708026 is a deficient number, since it is larger than the sum of its proper divisors (280836354016).

561672708026 is a wasteful number, since it uses less digits than its factorization.

561672708026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280836354015.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 561672708026 in words is "five hundred sixty-one billion, six hundred seventy-two million, seven hundred eight thousand, twenty-six".