208938529613 has 8 divisors (see below), whose sum is σ = 230189704416. Its totient is φ = 188063482000.

The previous prime is 208938529603. The next prime is 208938529621. The reversal of 208938529613 is 316925839802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208938529613 - 2¹⁴ = 208938513229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208938529603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94030631 + ... + 94032852.

It is an arithmetic number, because the mean of its divisors is an integer number (28773713052).

Almost surely, 2^208938529613 is an apocalyptic number.

It is an amenable number.

208938529613 is a deficient number, since it is larger than the sum of its proper divisors (21251174803).

208938529613 is a wasteful number, since it uses less digits than its factorization.

208938529613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188063595.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 208938529613 in words is "two hundred eight billion, nine hundred thirty-eight million, five hundred twenty-nine thousand, six hundred thirteen".