42170000493 has 4 divisors (see below), whose sum is σ = 56226667328. Its totient is φ = 28113333660.

The previous prime is 42170000479. The next prime is 42170000549. The reversal of 42170000493 is 39400007124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42170000493 - 2⁸ = 42170000237 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 42170000493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42170000423) 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 3 ways as a sum of consecutive naturals, for example, 7028333413 + ... + 7028333418.

It is an arithmetic number, because the mean of its divisors is an integer number (14056666832).

Almost surely, 2^42170000493 is an apocalyptic number.

It is an amenable number.

42170000493 is a deficient number, since it is larger than the sum of its proper divisors (14056666835).

42170000493 is a wasteful number, since it uses less digits than its factorization.

42170000493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14056666834.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 42170000493 in words is "forty-two billion, one hundred seventy million, four hundred ninety-three", and thus it is an aban number.