2489897536 has 56 divisors (see below), whose sum is σ = 5799384896. Its totient is φ = 1038251520.

The previous prime is 2489897497. The next prime is 2489897549. The reversal of 2489897536 is 6357989842.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58530 + ... + 91681.

Almost surely, 2^2489897536 is an apocalyptic number.

It is an amenable number.

2489897536 is an abundant number, since it is smaller than the sum of its proper divisors (3309487360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2489897536 is a wasteful number, since it uses less digits than its factorization.

2489897536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150267 (or 150257 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The square root of 2489897536 is about 49898.8730934878. The cubic root of 2489897536 is about 1355.3781864897.

The spelling of 2489897536 in words is "two billion, four hundred eighty-nine million, eight hundred ninety-seven thousand, five hundred thirty-six".