208905036934 has 16 divisors (see below), whose sum is σ = 345685559760. Its totient is φ = 93889903360.

The previous prime is 208905036881. The next prime is 208905036953. The reversal of 208905036934 is 439630509802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53344579 + ... + 53348494.

It is an arithmetic number, because the mean of its divisors is an integer number (21605347485).

Almost surely, 2^208905036934 is an apocalyptic number.

208905036934 is a deficient number, since it is larger than the sum of its proper divisors (136780522826).

208905036934 is a wasteful number, since it uses less digits than its factorization.

208905036934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106693175.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 208905036934 in words is "two hundred eight billion, nine hundred five million, thirty-six thousand, nine hundred thirty-four".