200409108644 has 24 divisors (see below), whose sum is σ = 353574099648. Its totient is φ = 99388721120.

The previous prime is 200409108643. The next prime is 200409108671. The reversal of 200409108644 is 446801904002.

It is a junction number, because it is equal to n+sod(n) for n = 200409108598 and 200409108607.

It is not an unprimeable number, because it can be changed into a prime (200409108643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936929 + ... + 1130775.

It is an arithmetic number, because the mean of its divisors is an integer number (14732254152).

Almost surely, 2^200409108644 is an apocalyptic number.

It is an amenable number.

200409108644 is a deficient number, since it is larger than the sum of its proper divisors (153164991004).

200409108644 is a wasteful number, since it uses less digits than its factorization.

200409108644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195955 (or 195953 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 200409108644 in words is "two hundred billion, four hundred nine million, one hundred eight thousand, six hundred forty-four".