42028163393 has 4 divisors (see below), whose sum is σ = 42039092160. Its totient is φ = 42017234628.

The previous prime is 42028163323. The next prime is 42028163423. The reversal of 42028163393 is 39336182024.

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 a cyclic number.

It is not a de Polignac number, because 42028163393 - 2¹⁰ = 42028162369 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 42028163393.

It is not an unprimeable number, because it can be changed into a prime (42028163323) 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, 5458613 + ... + 5466306.

It is an arithmetic number, because the mean of its divisors is an integer number (10509773040).

Almost surely, 2^42028163393 is an apocalyptic number.

It is an amenable number.

42028163393 is a deficient number, since it is larger than the sum of its proper divisors (10928767).

42028163393 is a wasteful number, since it uses less digits than its factorization.

42028163393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928766.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 42028163393 in words is "forty-two billion, twenty-eight million, one hundred sixty-three thousand, three hundred ninety-three".