208445312930 has 8 divisors (see below), whose sum is σ = 375201563292. Its totient is φ = 83378125168.

The previous prime is 208445312927. The next prime is 208445312953. The reversal of 208445312930 is 39213544802.

It can be written as a sum of positive squares in 2 ways, for example, as 204465848041 + 3979464889 = 452179^2 + 63083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 10422265637 + ... + 10422265656.

Almost surely, 2^208445312930 is an apocalyptic number.

208445312930 is a deficient number, since it is larger than the sum of its proper divisors (166756250362).

208445312930 is a wasteful number, since it uses less digits than its factorization.

208445312930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20844531300.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 208445312930 in words is "two hundred eight billion, four hundred forty-five million, three hundred twelve thousand, nine hundred thirty".