208822494841 has 9 divisors (see below), whose sum is σ = 215790640239. Its totient is φ = 202072576200.

The previous prime is 208822494809. The next prime is 208822494847. The reversal of 208822494841 is 148494228802.

The square root of 208822494841 is 456971.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 203194494441 + 5628000400 = 450771^2 + 75020^2 .

It is not a de Polignac number, because 208822494841 - 2⁵ = 208822494809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208822494847) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14158731 + ... + 14173471.

Almost surely, 2^208822494841 is an apocalyptic number.

208822494841 is the 456971-st square number.

208822494841 is the 228486-th centered octagonal number.

It is an amenable number.

208822494841 is a deficient number, since it is larger than the sum of its proper divisors (6968145398).

208822494841 is an frugal number, since it uses more digits than its factorization.

208822494841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29544 (or 14772 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 208822494841 in words is "two hundred eight billion, eight hundred twenty-two million, four hundred ninety-four thousand, eight hundred forty-one".