6498863616 has 80 divisors (see below), whose sum is σ = 19786751424. Its totient is φ = 1856815104.

The previous prime is 6498863597. The next prime is 6498863681. The reversal of 6498863616 is 6163688946.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291465 + ... + 312968.

Almost surely, 2^6498863616 is an apocalyptic number.

It is an amenable number.

6498863616 is an abundant number, since it is smaller than the sum of its proper divisors (13287887808).

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

6498863616 is an equidigital number, since it uses as much as digits as its factorization.

6498863616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604461 (or 604445 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 57.

The square root of 6498863616 is about 80615.5296205390. The cubic root of 6498863616 is about 1866.1468139685.

The spelling of 6498863616 in words is "six billion, four hundred ninety-eight million, eight hundred sixty-three thousand, six hundred sixteen".