42421850493 has 16 divisors (see below), whose sum is σ = 61739673600. Its totient is φ = 25695560880.

The previous prime is 42421850437. The next prime is 42421850533. The reversal of 42421850493 is 39405812424.

It is a happy number.

It is not a de Polignac number, because 42421850493 - 2¹⁰ = 42421849469 is a prime.

It is a super-2 number, since 2×42421850493² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421852493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307363 + ... + 423456.

It is an arithmetic number, because the mean of its divisors is an integer number (3858729600).

Almost surely, 2^42421850493 is an apocalyptic number.

It is an amenable number.

42421850493 is a deficient number, since it is larger than the sum of its proper divisors (19317823107).

42421850493 is a wasteful number, since it uses less digits than its factorization.

42421850493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732592.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 42421850493 in words is "forty-two billion, four hundred twenty-one million, eight hundred fifty thousand, four hundred ninety-three".