641876283850 has 12 divisors (see below), whose sum is σ = 1193889888054. Its totient is φ = 256750513520.

The previous prime is 641876283847. The next prime is 641876283857. The reversal of 641876283850 is 58382678146.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 574974909441 + 66901374409 = 758271^2 + 258653^2 .

It is not an unprimeable number, because it can be changed into a prime (641876283857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6418762789 + ... + 6418762888.

Almost surely, 2^641876283850 is an apocalyptic number.

641876283850 is a deficient number, since it is larger than the sum of its proper divisors (552013604204).

641876283850 is a wasteful number, since it uses less digits than its factorization.

641876283850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837525689 (or 12837525684 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 641876283850 in words is "six hundred forty-one billion, eight hundred seventy-six million, two hundred eighty-three thousand, eight hundred fifty".