42984563493 has 12 divisors (see below), whose sum is σ = 60487974528. Its totient is φ = 27148144680.

The previous prime is 42984563459. The next prime is 42984563519. The reversal of 42984563493 is 39436548924.

It is not a de Polignac number, because 42984563493 - 2¹⁰ = 42984562469 is a prime.

It is a super-2 number, since 2×42984563493² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42984563443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19844053 + ... + 19846218.

It is an arithmetic number, because the mean of its divisors is an integer number (5040664544).

Almost surely, 2^42984563493 is an apocalyptic number.

It is an amenable number.

42984563493 is a deficient number, since it is larger than the sum of its proper divisors (17503411035).

42984563493 is a wasteful number, since it uses less digits than its factorization.

42984563493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39690312 (or 39690293 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 57.

The spelling of 42984563493 in words is "forty-two billion, nine hundred eighty-four million, five hundred sixty-three thousand, four hundred ninety-three".