6518153849 has 4 divisors (see below), whose sum is σ = 6519088464. Its totient is φ = 6517219236.

The previous prime is 6518153833. The next prime is 6518153869. The reversal of 6518153849 is 9483518156.

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 6518153849 - 2⁴ = 6518153833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6518153797 and 6518153806.

It is not an unprimeable number, because it can be changed into a prime (6518153869) 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, 456767 + ... + 470820.

It is an arithmetic number, because the mean of its divisors is an integer number (1629772116).

Almost surely, 2^6518153849 is an apocalyptic number.

It is an amenable number.

6518153849 is a deficient number, since it is larger than the sum of its proper divisors (934615).

6518153849 is an equidigital number, since it uses as much as digits as its factorization.

6518153849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934614.

The product of its digits is 1036800, while the sum is 50.

The square root of 6518153849 is about 80735.0843747624. The cubic root of 6518153849 is about 1867.9913850714.

The spelling of 6518153849 in words is "six billion, five hundred eighteen million, one hundred fifty-three thousand, eight hundred forty-nine".