6459953508 has 18 divisors (see below), whose sum is σ = 16329327014. Its totient is φ = 2153317824.

The previous prime is 6459953491. The next prime is 6459953509. The reversal of 6459953508 is 8053599546.

It is a happy number.

6459953508 is a `hidden beast` number, since 6 + 45 + 9 + 95 + 3 + 508 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4318855524 + 2141097984 = 65718^2 + 46272^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (6459953509) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 89721541 + ... + 89721612.

Almost surely, 2^6459953508 is an apocalyptic number.

It is an amenable number.

6459953508 is an abundant number, since it is smaller than the sum of its proper divisors (9869373506).

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

6459953508 is a wasteful number, since it uses less digits than its factorization.

6459953508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179443163 (or 179443158 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The square root of 6459953508 is about 80373.8359666876. The cubic root of 6459953508 is about 1862.4150142325.

The spelling of 6459953508 in words is "six billion, four hundred fifty-nine million, nine hundred fifty-three thousand, five hundred eight".