208947808144 has 40 divisors (see below), whose sum is σ = 412796704320. Its totient is φ = 102430646400.

The previous prime is 208947808117. The next prime is 208947808151. The reversal of 208947808144 is 441808749802.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40654 + ... + 647725.

It is an arithmetic number, because the mean of its divisors is an integer number (10319917608).

Almost surely, 2^208947808144 is an apocalyptic number.

It is an amenable number.

208947808144 is a deficient number, since it is larger than the sum of its proper divisors (203848896176).

208947808144 is a wasteful number, since it uses less digits than its factorization.

208947808144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688759 (or 688753 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 208947808144 in words is "two hundred eight billion, nine hundred forty-seven million, eight hundred eight thousand, one hundred forty-four".