208113430634 has 8 divisors (see below), whose sum is σ = 312173070528. Its totient is φ = 104055740460.

The previous prime is 208113430633. The next prime is 208113430639. The reversal of 208113430634 is 436034311802.

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

It is a super-2 number, since 2×208113430634² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 208113430594 and 208113430603.

It is not an unprimeable number, because it can be changed into a prime (208113430633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182402 + ... + 670445.

It is an arithmetic number, because the mean of its divisors is an integer number (39021633816).

Almost surely, 2^208113430634 is an apocalyptic number.

208113430634 is a deficient number, since it is larger than the sum of its proper divisors (104059639894).

208113430634 is a wasteful number, since it uses less digits than its factorization.

208113430634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974860.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 208113430634 in words is "two hundred eight billion, one hundred thirteen million, four hundred thirty thousand, six hundred thirty-four".