42098434559 has 4 divisors (see below), whose sum is σ = 42110573640. Its totient is φ = 42086295480.

The previous prime is 42098434529. The next prime is 42098434579. The reversal of 42098434559 is 95543489024.

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 42098434559 - 2¹² = 42098430463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42098434559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42098434519) 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, 6064337 + ... + 6071274.

It is an arithmetic number, because the mean of its divisors is an integer number (10527643410).

Almost surely, 2^42098434559 is an apocalyptic number.

42098434559 is a deficient number, since it is larger than the sum of its proper divisors (12139081).

42098434559 is a wasteful number, since it uses less digits than its factorization.

42098434559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12139080.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 42098434559 in words is "forty-two billion, ninety-eight million, four hundred thirty-four thousand, five hundred fifty-nine".