2447971489 has 4 divisors (see below), whose sum is σ = 2554405056. Its totient is φ = 2341537924.

The previous prime is 2447971483. The next prime is 2447971507. The reversal of 2447971489 is 9841797442.

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.

It is a cyclic number.

It is not a de Polignac number, because 2447971489 - 2¹⁵ = 2447938721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2447971483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53216749 + ... + 53216794.

It is an arithmetic number, because the mean of its divisors is an integer number (638601264).

Almost surely, 2^2447971489 is an apocalyptic number.

It is an amenable number.

2447971489 is a deficient number, since it is larger than the sum of its proper divisors (106433567).

2447971489 is a wasteful number, since it uses less digits than its factorization.

2447971489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106433566.

The product of its digits is 4064256, while the sum is 55.

The square root of 2447971489 is about 49476.9793843561. The cubic root of 2447971489 is about 1347.7275879498.

The spelling of 2447971489 in words is "two billion, four hundred forty-seven million, nine hundred seventy-one thousand, four hundred eighty-nine".