210834421208 has 8 divisors (see below), whose sum is σ = 395314539780. Its totient is φ = 105417210600.

The previous prime is 210834421199. The next prime is 210834421223. The reversal of 210834421208 is 802124438012.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×210834421208² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13177151318 + ... + 13177151333.

Almost surely, 2^210834421208 is an apocalyptic number.

It is an amenable number.

210834421208 is a deficient number, since it is larger than the sum of its proper divisors (184480118572).

210834421208 is a wasteful number, since it uses less digits than its factorization.

210834421208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26354302657 (or 26354302653 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The spelling of 210834421208 in words is "two hundred ten billion, eight hundred thirty-four million, four hundred twenty-one thousand, two hundred eight".