561000000007 has 4 divisors (see below), whose sum is σ = 565094890656. Its totient is φ = 556905109360.

The previous prime is 560999999993. The next prime is 561000000013. The reversal of 561000000007 is 700000000165.

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

It is a cyclic number.

It is not a de Polignac number, because 561000000007 - 2³¹ = 558852516359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561000000037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2047445119 + ... + 2047445392.

It is an arithmetic number, because the mean of its divisors is an integer number (141273722664).

Almost surely, 2^561000000007 is an apocalyptic number.

561000000007 is a deficient number, since it is larger than the sum of its proper divisors (4094890649).

561000000007 is a wasteful number, since it uses less digits than its factorization.

561000000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094890648.

The product of its (nonzero) digits is 210, while the sum is 19.

The spelling of 561000000007 in words is "five hundred sixty-one billion, seven", and thus it is an aban number.