2047743899 has 4 divisors (see below), whose sum is σ = 2052167136. Its totient is φ = 2043320664.

The previous prime is 2047743871. The next prime is 2047743913. The reversal of 2047743899 is 9983477402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9983477402 = 2 ⋅4991738701.

It is a cyclic number.

It is not a de Polignac number, because 2047743899 - 2²⁴ = 2030966683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2047743899.

It is not an unprimeable number, because it can be changed into a prime (2047743839) 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, 2210924 + ... + 2211849.

It is an arithmetic number, because the mean of its divisors is an integer number (513041784).

Almost surely, 2^2047743899 is an apocalyptic number.

2047743899 is a deficient number, since it is larger than the sum of its proper divisors (4423237).

2047743899 is an equidigital number, since it uses as much as digits as its factorization.

2047743899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423236.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The square root of 2047743899 is about 45252.0043644478. The cubic root of 2047743899 is about 1269.8679051236.

The spelling of 2047743899 in words is "two billion, forty-seven million, seven hundred forty-three thousand, eight hundred ninety-nine".