561826265407 has 8 divisors (see below), whose sum is σ = 612906804432. Its totient is φ = 510746630400.

The previous prime is 561826265401. The next prime is 561826265411. The reversal of 561826265407 is 704562628165.

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

It is a cyclic number.

It is not a de Polignac number, because 561826265407 - 2⁷ = 561826265279 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 (561826265401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2365423 + ... + 2592079.

It is an arithmetic number, because the mean of its divisors is an integer number (76613350554).

Almost surely, 2^561826265407 is an apocalyptic number.

561826265407 is a deficient number, since it is larger than the sum of its proper divisors (51080539025).

561826265407 is a wasteful number, since it uses less digits than its factorization.

561826265407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452009.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 561826265407 in words is "five hundred sixty-one billion, eight hundred twenty-six million, two hundred sixty-five thousand, four hundred seven".