6461647146 has 24 divisors (see below), whose sum is σ = 14032143840. Its totient is φ = 2148973416.

The previous prime is 6461647133. The next prime is 6461647187. The reversal of 6461647146 is 6417461646.

6461647146 is a `hidden beast` number, since 6 + 461 + 6 + 47 + 146 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 400960 + ... + 416763.

It is an arithmetic number, because the mean of its divisors is an integer number (584672660).

Almost surely, 2^6461647146 is an apocalyptic number.

6461647146 is an abundant number, since it is smaller than the sum of its proper divisors (7570496694).

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

6461647146 is a wasteful number, since it uses less digits than its factorization.

6461647146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818170 (or 818167 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 6461647146 is about 80384.3712794969. The cubic root of 6461647146 is about 1862.5777595329.

The spelling of 6461647146 in words is "six billion, four hundred sixty-one million, six hundred forty-seven thousand, one hundred forty-six".