208127064450 has 24 divisors (see below), whose sum is σ = 516155120208. Its totient is φ = 55500550480.

The previous prime is 208127064403. The next prime is 208127064487. The reversal of 208127064450 is 54460721802.

208127064450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 208127064399 and 208127064408.

It is an unprimeable number.

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, 693756732 + ... + 693757031.

It is an arithmetic number, because the mean of its divisors is an integer number (21506463342).

Almost surely, 2^208127064450 is an apocalyptic number.

208127064450 is an abundant number, since it is smaller than the sum of its proper divisors (308028055758).

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

208127064450 is a wasteful number, since it uses less digits than its factorization.

208127064450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387513778 (or 1387513773 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 208127064450 in words is "two hundred eight billion, one hundred twenty-seven million, sixty-four thousand, four hundred fifty".