208768229411 has 16 divisors (see below), whose sum is σ = 252811295424. Its totient is φ = 168295271424.

The previous prime is 208768229359. The next prime is 208768229419. The reversal of 208768229411 is 114922867802.

It is not a de Polignac number, because 208768229411 - 2⁶ = 208768229347 is a prime.

It is a super-2 number, since 2×208768229411² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 208768229411.

It is not an unprimeable number, because it can be changed into a prime (208768229419) 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, 475490 + ... + 802263.

It is an arithmetic number, because the mean of its divisors is an integer number (15800705964).

Almost surely, 2^208768229411 is an apocalyptic number.

208768229411 is a deficient number, since it is larger than the sum of its proper divisors (44043066013).

208768229411 is a wasteful number, since it uses less digits than its factorization.

208768229411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279150.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 208768229411 in words is "two hundred eight billion, seven hundred sixty-eight million, two hundred twenty-nine thousand, four hundred eleven".