2047489487 has 4 divisors (see below), whose sum is σ = 2055985536. Its totient is φ = 2038993440.

The previous prime is 2047489439. The next prime is 2047489489. The reversal of 2047489487 is 7849847402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2047489487 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 (2047489489) 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, 4247663 + ... + 4248144.

It is an arithmetic number, because the mean of its divisors is an integer number (513996384).

Almost surely, 2^2047489487 is an apocalyptic number.

2047489487 is a deficient number, since it is larger than the sum of its proper divisors (8496049).

2047489487 is an equidigital number, since it uses as much as digits as its factorization.

2047489487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496048.

The product of its (nonzero) digits is 3612672, while the sum is 53.

The square root of 2047489487 is about 45249.1932193271. The cubic root of 2047489487 is about 1269.8153134211.

The spelling of 2047489487 in words is "two billion, forty-seven million, four hundred eighty-nine thousand, four hundred eighty-seven".