208108487402 has 32 divisors (see below), whose sum is σ = 332038990800. Its totient is φ = 97666103808.

The previous prime is 208108487401. The next prime is 208108487407. The reversal of 208108487402 is 204784801802.

It can be written as a sum of positive squares in 8 ways, for example, as 132895973401 + 75212514001 = 364549^2 + 274249^2 .

It is not an unprimeable number, because it can be changed into a prime (208108487401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24518 + ... + 645614.

Almost surely, 2^208108487402 is an apocalyptic number.

208108487402 is a deficient number, since it is larger than the sum of its proper divisors (123930503398).

208108487402 is a wasteful number, since it uses less digits than its factorization.

208108487402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621290.

The product of its (nonzero) digits is 229376, while the sum is 44.

The spelling of 208108487402 in words is "two hundred eight billion, one hundred eight million, four hundred eighty-seven thousand, four hundred two".