605426561543 has 4 divisors (see below), whose sum is σ = 605508195840. Its totient is φ = 605344927248.

The previous prime is 605426561521. The next prime is 605426561557. The reversal of 605426561543 is 345165624506.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605426561543 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 (605426561143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40806023 + ... + 40820856.

It is an arithmetic number, because the mean of its divisors is an integer number (151377048960).

Almost surely, 2^605426561543 is an apocalyptic number.

605426561543 is a deficient number, since it is larger than the sum of its proper divisors (81634297).

605426561543 is an equidigital number, since it uses as much as digits as its factorization.

605426561543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81634296.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 605426561543 in words is "six hundred five billion, four hundred twenty-six million, five hundred sixty-one thousand, five hundred forty-three".