641888002010 has 16 divisors (see below), whose sum is σ = 1161384927336. Its totient is φ = 255424862208.

The previous prime is 641888002009. The next prime is 641888002027. The reversal of 641888002010 is 10200888146.

It can be written as a sum of positive squares in 4 ways, for example, as 612335985361 + 29552016649 = 782519^2 + 171907^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166290299 + ... + 166294158.

Almost surely, 2^641888002010 is an apocalyptic number.

641888002010 is a deficient number, since it is larger than the sum of its proper divisors (519496925326).

641888002010 is a wasteful number, since it uses less digits than its factorization.

641888002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332584657.

The product of its (nonzero) digits is 24576, while the sum is 38.

The spelling of 641888002010 in words is "six hundred forty-one billion, eight hundred eighty-eight million, two thousand, ten".