6489455916 has 12 divisors (see below), whose sum is σ = 15142063832. Its totient is φ = 2163151968.

The previous prime is 6489455893. The next prime is 6489455941. The reversal of 6489455916 is 6195549846.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6489455916² = 84226076171414798112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270393985 + ... + 270394008.

Almost surely, 2^6489455916 is an apocalyptic number.

It is an amenable number.

6489455916 is an abundant number, since it is smaller than the sum of its proper divisors (8652607916).

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

6489455916 is a wasteful number, since it uses less digits than its factorization.

6489455916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540788000 (or 540787998 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 57.

The square root of 6489455916 is about 80557.1593093997. The cubic root of 6489455916 is about 1865.2459063321.

The spelling of 6489455916 in words is "six billion, four hundred eighty-nine million, four hundred fifty-five thousand, nine hundred sixteen".