2489662563 has 8 divisors (see below), whose sum is σ = 3514817808. Its totient is φ = 1562141184.

The previous prime is 2489662561. The next prime is 2489662573. The reversal of 2489662563 is 3652669842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2489662563 - 2¹ = 2489662561 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 48816913 = 2489662563 / (2 + 4 + 8 + 9 + 6 + 6 + 2 + 5 + 6 + 3).

It is not an unprimeable number, because it can be changed into a prime (2489662561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24408406 + ... + 24408507.

It is an arithmetic number, because the mean of its divisors is an integer number (439352226).

Almost surely, 2^2489662563 is an apocalyptic number.

2489662563 is a deficient number, since it is larger than the sum of its proper divisors (1025155245).

2489662563 is a wasteful number, since it uses less digits than its factorization.

2489662563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48816933.

The product of its digits is 3732480, while the sum is 51.

The square root of 2489662563 is about 49896.5185458865. The cubic root of 2489662563 is about 1355.3355492201.

The spelling of 2489662563 in words is "two billion, four hundred eighty-nine million, six hundred sixty-two thousand, five hundred sixty-three".