208375147922 has 6 divisors (see below), whose sum is σ = 312563690229. Its totient is φ = 104187251180.

The previous prime is 208375147907. The next prime is 208375147963. The reversal of 208375147922 is 229741573802.

It can be written as a sum of positive squares in 2 ways, for example, as 171753053761 + 36622094161 = 414431^2 + 191369^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=322781.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 484172 + ... + 806952.

Almost surely, 2^208375147922 is an apocalyptic number.

208375147922 is a deficient number, since it is larger than the sum of its proper divisors (104188542307).

208375147922 is an frugal number, since it uses more digits than its factorization.

208375147922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645564 (or 322783 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

Multiplying 208375147922 by its sum of digits (50), we get a square (10418757396100 = 3227810²).

The spelling of 208375147922 in words is "two hundred eight billion, three hundred seventy-five million, one hundred forty-seven thousand, nine hundred twenty-two".