208206124898 has 4 divisors (see below), whose sum is σ = 312309187350. Its totient is φ = 104103062448.

The previous prime is 208206124891. The next prime is 208206125047. The reversal of 208206124898 is 898421602802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 111300302689 + 96905822209 = 333617^2 + 311297^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (208206124891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52051531223 + ... + 52051531226.

Almost surely, 2^208206124898 is an apocalyptic number.

208206124898 is a deficient number, since it is larger than the sum of its proper divisors (104103062452).

208206124898 is a wasteful number, since it uses less digits than its factorization.

208206124898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104103062451.

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 208206124898 in words is "two hundred eight billion, two hundred six million, one hundred twenty-four thousand, eight hundred ninety-eight".