42145203293 has 4 divisors (see below), whose sum is σ = 42554380128. Its totient is φ = 41736026460.

The previous prime is 42145203283. The next prime is 42145203307. The reversal of 42145203293 is 39230254124.

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 42145203293 - 2¹⁶ = 42145137757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42145203203) 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, 204588263 + ... + 204588468.

It is an arithmetic number, because the mean of its divisors is an integer number (10638595032).

Almost surely, 2^42145203293 is an apocalyptic number.

It is an amenable number.

42145203293 is a deficient number, since it is larger than the sum of its proper divisors (409176835).

42145203293 is a wasteful number, since it uses less digits than its factorization.

42145203293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409176834.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 42145203293 in words is "forty-two billion, one hundred forty-five million, two hundred three thousand, two hundred ninety-three".