208826053406 has 16 divisors (see below), whose sum is σ = 318690892800. Its totient is φ = 102597341208.

The previous prime is 208826053379. The next prime is 208826053411. The reversal of 208826053406 is 604350628802.

It is a super-2 number, since 2×208826053406² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 131000 + ... + 659403.

It is an arithmetic number, because the mean of its divisors is an integer number (19918180800).

Almost surely, 2^208826053406 is an apocalyptic number.

208826053406 is a deficient number, since it is larger than the sum of its proper divisors (109864839394).

208826053406 is a wasteful number, since it uses less digits than its factorization.

208826053406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792703.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 208826053406 in words is "two hundred eight billion, eight hundred twenty-six million, fifty-three thousand, four hundred six".