561235747173 has 16 divisors (see below), whose sum is σ = 748770954816. Its totient is φ = 373928929920.

The previous prime is 561235747133. The next prime is 561235747249. The reversal of 561235747173 is 371747532165.

It is not a de Polignac number, because 561235747173 - 2⁸ = 561235746917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561235747133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59091361 + ... + 59100857.

It is an arithmetic number, because the mean of its divisors is an integer number (46798184676).

Almost surely, 2^561235747173 is an apocalyptic number.

It is an amenable number.

561235747173 is a deficient number, since it is larger than the sum of its proper divisors (187535207643).

561235747173 is a wasteful number, since it uses less digits than its factorization.

561235747173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19444.

The product of its digits is 3704400, while the sum is 51.

The spelling of 561235747173 in words is "five hundred sixty-one billion, two hundred thirty-five million, seven hundred forty-seven thousand, one hundred seventy-three".