208425671139 has 16 divisors (see below), whose sum is σ = 326184835328. Its totient is φ = 115881453792.

The previous prime is 208425671131. The next prime is 208425671269. The reversal of 208425671139 is 931176524802.

It is not a de Polignac number, because 208425671139 - 2³ = 208425671131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208425671131) 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, 134121277 + ... + 134122830.

It is an arithmetic number, because the mean of its divisors is an integer number (20386552208).

It is a 1-persistent number, because it is pandigital, but 2⋅208425671139 = 416851342278 is not.

Almost surely, 2^208425671139 is an apocalyptic number.

208425671139 is a deficient number, since it is larger than the sum of its proper divisors (117759164189).

208425671139 is a wasteful number, since it uses less digits than its factorization.

208425671139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268244154.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 208425671139 in words is "two hundred eight billion, four hundred twenty-five million, six hundred seventy-one thousand, one hundred thirty-nine".