6403258516 has 24 divisors (see below), whose sum is σ = 11316057984. Its totient is φ = 3170207040.

The previous prime is 6403258513. The next prime is 6403258553. The reversal of 6403258516 is 6158523046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403258513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229416 + ... + 255808.

It is an arithmetic number, because the mean of its divisors is an integer number (471502416).

Almost surely, 2^6403258516 is an apocalyptic number.

It is an amenable number.

6403258516 is a deficient number, since it is larger than the sum of its proper divisors (4912799468).

6403258516 is a wasteful number, since it uses less digits than its factorization.

6403258516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26991 (or 26989 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 6403258516 is about 80020.3631333925. The cubic root of 6403258516 is about 1856.9505777228.

The spelling of 6403258516 in words is "six billion, four hundred three million, two hundred fifty-eight thousand, five hundred sixteen".