107842392809 has 4 divisors (see below), whose sum is σ = 113518308240. Its totient is φ = 102166477380.

The previous prime is 107842392781. The next prime is 107842392821. The reversal of 107842392809 is 908293248701.

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, and also an emirpimes, since its reverse is a distinct semiprime: 908293248701 = 43 ⋅21123098807.

It is a de Polignac number, because none of the positive numbers 2^k-107842392809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (107842302809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2837957687 + ... + 2837957724.

It is an arithmetic number, because the mean of its divisors is an integer number (28379577060).

Almost surely, 2^107842392809 is an apocalyptic number.

107842392809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

107842392809 is a deficient number, since it is larger than the sum of its proper divisors (5675915431).

107842392809 is an equidigital number, since it uses as much as digits as its factorization.

107842392809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5675915430.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 107842392809 in words is "one hundred seven billion, eight hundred forty-two million, three hundred ninety-two thousand, eight hundred nine".