6445012146 has 64 divisors (see below), whose sum is σ = 13494159360. Its totient is φ = 2050518080.

The previous prime is 6445012141. The next prime is 6445012153. The reversal of 6445012146 is 6412105446.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6445012141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2178100 + ... + 2181056.

It is an arithmetic number, because the mean of its divisors is an integer number (210846240).

Almost surely, 2^6445012146 is an apocalyptic number.

6445012146 is an abundant number, since it is smaller than the sum of its proper divisors (7049147214).

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

6445012146 is a wasteful number, since it uses less digits than its factorization.

6445012146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 6445012146 is about 80280.8329926889. The cubic root of 6445012146 is about 1860.9780328675.

The spelling of 6445012146 in words is "six billion, four hundred forty-five million, twelve thousand, one hundred forty-six".