42566734459 has 8 divisors (see below), whose sum is σ = 43307491040. Its totient is φ = 41827363200.

The previous prime is 42566734453. The next prime is 42566734481. The reversal of 42566734459 is 95443766524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42566734459 - 2¹⁹ = 42566210171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42566734453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284247 + ... + 407344.

It is an arithmetic number, because the mean of its divisors is an integer number (5413436380).

Almost surely, 2^42566734459 is an apocalyptic number.

42566734459 is a deficient number, since it is larger than the sum of its proper divisors (740756581).

42566734459 is a wasteful number, since it uses less digits than its factorization.

42566734459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692661.

The product of its digits is 21772800, while the sum is 55.

The spelling of 42566734459 in words is "forty-two billion, five hundred sixty-six million, seven hundred thirty-four thousand, four hundred fifty-nine".