42145430263 has 4 divisors (see below), whose sum is σ = 42147412648. Its totient is φ = 42143447880.

The previous prime is 42145430237. The next prime is 42145430297. The reversal of 42145430263 is 36203454124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42145430263 - 2³³ = 33555495671 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 (42145430363) 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, 958953 + ... + 1001938.

It is an arithmetic number, because the mean of its divisors is an integer number (10536853162).

Almost surely, 2^42145430263 is an apocalyptic number.

42145430263 is a deficient number, since it is larger than the sum of its proper divisors (1982385).

42145430263 is a wasteful number, since it uses less digits than its factorization.

42145430263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982384.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 42145430263 its reverse (36203454124), we get a palindrome (78348884387).

The spelling of 42145430263 in words is "forty-two billion, one hundred forty-five million, four hundred thirty thousand, two hundred sixty-three".