561428571547469 has 2 divisors, whose sum is σ = 561428571547470. Its totient is φ = 561428571547468.

The previous prime is 561428571547429. The next prime is 561428571547541. The reversal of 561428571547469 is 964745175824165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541816401302500 + 19612170244969 = 23276950^2 + 4428563^2 .

It is a cyclic number.

It is not a de Polignac number, because 561428571547469 - 2¹² = 561428571543373 is a prime.

It is a super-2 number, since 2×561428571547469² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561428571547396 and 561428571547405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561428571547429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280714285773734 + 280714285773735.

It is an arithmetic number, because the mean of its divisors is an integer number (280714285773735).

Almost surely, 2^{561428571547469} is an apocalyptic number.

It is an amenable number.

561428571547469 is a deficient number, since it is larger than the sum of its proper divisors (1).

561428571547469 is an equidigital number, since it uses as much as digits as its factorization.

561428571547469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128000, while the sum is 74.

The spelling of 561428571547469 in words is "five hundred sixty-one trillion, four hundred twenty-eight billion, five hundred seventy-one million, five hundred forty-seven thousand, four hundred sixty-nine".