6485863788 has 36 divisors (see below), whose sum is σ = 17257709560. Its totient is φ = 2048167296.

The previous prime is 6485863781. The next prime is 6485863789. The reversal of 6485863788 is 8873685846.

6485863788 is a `hidden beast` number, since 6 + 48 + 586 + 3 + 7 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (6485863781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4740445 + ... + 4741812.

Almost surely, 2^6485863788 is an apocalyptic number.

It is an amenable number.

6485863788 is an abundant number, since it is smaller than the sum of its proper divisors (10771845772).

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

6485863788 is a wasteful number, since it uses less digits than its factorization.

6485863788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9482286 (or 9482281 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The square root of 6485863788 is about 80534.8607001962. The cubic root of 6485863788 is about 1864.9016844243.

The spelling of 6485863788 in words is "six billion, four hundred eighty-five million, eight hundred sixty-three thousand, seven hundred eighty-eight".