641868882050 has 24 divisors (see below), whose sum is σ = 1302410314512. Its totient is φ = 233406866000.

The previous prime is 641868882023. The next prime is 641868882073. The reversal of 641868882050 is 50288868146.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583516616 + ... + 583517715.

It is an arithmetic number, because the mean of its divisors is an integer number (54267096438).

Almost surely, 2^641868882050 is an apocalyptic number.

641868882050 is an abundant number, since it is smaller than the sum of its proper divisors (660541432462).

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

641868882050 is a wasteful number, since it uses less digits than its factorization.

641868882050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167034354 (or 1167034349 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 56.

The spelling of 641868882050 in words is "six hundred forty-one billion, eight hundred sixty-eight million, eight hundred eighty-two thousand, fifty".