208450064047 has 12 divisors (see below), whose sum is σ = 219544991640. Its totient is φ = 197850861152.

The previous prime is 208450064033. The next prime is 208450064059. The reversal of 208450064047 is 740460054802.

It is a happy number.

208450064047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-208450064047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208450034047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2050888 + ... + 2150125.

It is an arithmetic number, because the mean of its divisors is an integer number (18295415970).

Almost surely, 2^208450064047 is an apocalyptic number.

208450064047 is a deficient number, since it is larger than the sum of its proper divisors (11094927593).

208450064047 is an equidigital number, since it uses as much as digits as its factorization.

208450064047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201130 (or 4201101 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 208450064047 in words is "two hundred eight billion, four hundred fifty million, sixty-four thousand, forty-seven".