208604406802 has 12 divisors (see below), whose sum is σ = 343938671118. Its totient is φ = 94820184800.

The previous prime is 208604406799. The next prime is 208604406811.

208604406802 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 159519561201 + 49084845601 = 399399^2 + 221551^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 431000599 + ... + 431001082.

Almost surely, 2^208604406802 is an apocalyptic number.

208604406802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

208604406802 is a deficient number, since it is larger than the sum of its proper divisors (135334264316).

208604406802 is a wasteful number, since it uses less digits than its factorization.

208604406802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862001705 (or 862001694 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 208604406802 in words is "two hundred eight billion, six hundred four million, four hundred six thousand, eight hundred two".