209473996308 has 48 divisors (see below), whose sum is σ = 506428728960. Its totient is φ = 67310006400.

The previous prime is 209473996261. The next prime is 209473996313. The reversal of 209473996308 is 803699374902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257383 + ... + 696558.

It is an arithmetic number, because the mean of its divisors is an integer number (10550598520).

Almost surely, 2^209473996308 is an apocalyptic number.

It is an amenable number.

209473996308 is an abundant number, since it is smaller than the sum of its proper divisors (296954732652).

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

209473996308 is a wasteful number, since it uses less digits than its factorization.

209473996308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954608 (or 954606 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 209473996308 in words is "two hundred nine billion, four hundred seventy-three million, nine hundred ninety-six thousand, three hundred eight".