646822002824 has 16 divisors (see below), whose sum is σ = 1245569397900. Its totient is φ = 314670163392.

The previous prime is 646822002809. The next prime is 646822002847. The reversal of 646822002824 is 428200228646.

It can be written as a sum of positive squares in 2 ways, for example, as 639600062500 + 7221940324 = 799750^2 + 84982^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092604439 + ... + 1092605030.

Almost surely, 2^646822002824 is an apocalyptic number.

It is an amenable number.

646822002824 is a deficient number, since it is larger than the sum of its proper divisors (598747395076).

646822002824 is a wasteful number, since it uses less digits than its factorization.

646822002824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185209512 (or 2185209508 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 44.

The spelling of 646822002824 in words is "six hundred forty-six billion, eight hundred twenty-two million, two thousand, eight hundred twenty-four".