643130362146 has 8 divisors (see below), whose sum is σ = 1286260724304. Its totient is φ = 214376787380.

The previous prime is 643130362097. The next prime is 643130362163. The reversal of 643130362146 is 641263031346.

It is a sphenic number, since it is the product of 3 distinct primes.

643130362146 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53594196840 + ... + 53594196851.

It is an arithmetic number, because the mean of its divisors is an integer number (160782590538).

Almost surely, 2^643130362146 is an apocalyptic number.

643130362146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

643130362146 is a wasteful number, since it uses less digits than its factorization.

643130362146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107188393696.

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 643130362146 in words is "six hundred forty-three billion, one hundred thirty million, three hundred sixty-two thousand, one hundred forty-six".