561428705339 has 4 divisors (see below), whose sum is σ = 565526725224. Its totient is φ = 557330685456.

The previous prime is 561428705311. The next prime is 561428705377. The reversal of 561428705339 is 933507824165.

It is a happy number.

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 561428705339 - 2⁸ = 561428705083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561428705039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049009737 + ... + 2049010010.

It is an arithmetic number, because the mean of its divisors is an integer number (141381681306).

It is a 1-persistent number, because it is pandigital, but 2⋅561428705339 = 1122857410678 is not.

Almost surely, 2^561428705339 is an apocalyptic number.

561428705339 is a deficient number, since it is larger than the sum of its proper divisors (4098019885).

561428705339 is a wasteful number, since it uses less digits than its factorization.

561428705339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098019884.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 561428705339 in words is "five hundred sixty-one billion, four hundred twenty-eight million, seven hundred five thousand, three hundred thirty-nine".