42839263845 has 24 divisors (see below), whose sum is σ = 84862542336. Its totient is φ = 19583663328.

The previous prime is 42839263783. The next prime is 42839263867. The reversal of 42839263845 is 54836293824.

It is not a de Polignac number, because 42839263845 - 2⁸ = 42839263589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42839263791 and 42839263800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67998517 + ... + 67999146.

It is an arithmetic number, because the mean of its divisors is an integer number (3535939264).

Almost surely, 2^42839263845 is an apocalyptic number.

42839263845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42839263845 is a deficient number, since it is larger than the sum of its proper divisors (42023278491).

42839263845 is a wasteful number, since it uses less digits than its factorization.

42839263845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135997681 (or 135997678 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 42839263845 in words is "forty-two billion, eight hundred thirty-nine million, two hundred sixty-three thousand, eight hundred forty-five".