814428175208 has 16 divisors (see below), whose sum is σ = 1527085557060. Its totient is φ = 407205360000.

The previous prime is 814428175193. The next prime is 814428175217. The reversal of 814428175208 is 802571824418.

It can be written as a sum of positive squares in 2 ways, for example, as 731021580004 + 83406595204 = 854998^2 + 288802^2 .

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, 685493 + ... + 1448708.

Almost surely, 2^814428175208 is an apocalyptic number.

It is an amenable number.

814428175208 is a deficient number, since it is larger than the sum of its proper divisors (712657381852).

814428175208 is a wasteful number, since it uses less digits than its factorization.

814428175208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181908 (or 2181904 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 50.

The spelling of 814428175208 in words is "eight hundred fourteen billion, four hundred twenty-eight million, one hundred seventy-five thousand, two hundred eight".