42718561061 has 32 divisors (see below), whose sum is σ = 52024187520. Its totient is φ = 34571059200.

The previous prime is 42718561049. The next prime is 42718561063. The reversal of 42718561061 is 16016581724.

It is a cyclic number.

It is not a de Polignac number, because 42718561061 - 2¹⁰ = 42718560037 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 (42718561063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2268095 + ... + 2286851.

It is an arithmetic number, because the mean of its divisors is an integer number (1625755860).

Almost surely, 2^42718561061 is an apocalyptic number.

It is an amenable number.

42718561061 is a deficient number, since it is larger than the sum of its proper divisors (9305626459).

42718561061 is a wasteful number, since it uses less digits than its factorization.

42718561061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19445.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 42718561061 in words is "forty-two billion, seven hundred eighteen million, five hundred sixty-one thousand, sixty-one".