2449985517 has 24 divisors (see below), whose sum is σ = 4110728960. Its totient is φ = 1377038880.

The previous prime is 2449985441. The next prime is 2449985567. The reversal of 2449985517 is 7155899442.

It is a happy number.

2449985517 is a `hidden beast` number, since 2 + 4 + 49 + 9 + 85 + 517 = 666.

It is not a de Polignac number, because 2449985517 - 2⁷ = 2449985389 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 (2449985567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314917 + ... + 322602.

Almost surely, 2^2449985517 is an apocalyptic number.

It is an amenable number.

2449985517 is a deficient number, since it is larger than the sum of its proper divisors (1660743443).

2449985517 is a wasteful number, since it uses less digits than its factorization.

2449985517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637593 (or 637590 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 2449985517 is about 49497.3283824491. The cubic root of 2449985517 is about 1348.0970934842.

The spelling of 2449985517 in words is "two billion, four hundred forty-nine million, nine hundred eighty-five thousand, five hundred seventeen".