42837806109 has 16 divisors (see below), whose sum is σ = 66608835200. Its totient is φ = 24478745760.

The previous prime is 42837806071. The next prime is 42837806111. The reversal of 42837806109 is 90160873824.

42837806109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42837806109 - 2⁹ = 42837805597 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 (42837806119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20814232 + ... + 20816289.

It is an arithmetic number, because the mean of its divisors is an integer number (4163052200).

Almost surely, 2^42837806109 is an apocalyptic number.

42837806109 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

42837806109 is a deficient number, since it is larger than the sum of its proper divisors (23771029091).

42837806109 is an equidigital number, since it uses as much as digits as its factorization.

42837806109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41630545 (or 41630531 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 42837806109 in words is "forty-two billion, eight hundred thirty-seven million, eight hundred six thousand, one hundred nine".