208108073997 has 24 divisors (see below), whose sum is σ = 303452866080. Its totient is φ = 137422631520.

The previous prime is 208108073981. The next prime is 208108074011. The reversal of 208108073997 is 799370801802.

It is not a de Polignac number, because 208108073997 - 2⁴ = 208108073981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208108073197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10640047 + ... + 10659587.

It is an arithmetic number, because the mean of its divisors is an integer number (12643869420).

Almost surely, 2^208108073997 is an apocalyptic number.

It is an amenable number.

208108073997 is a deficient number, since it is larger than the sum of its proper divisors (95344792083).

208108073997 is a wasteful number, since it uses less digits than its factorization.

208108073997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30713 (or 30710 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 208108073997 in words is "two hundred eight billion, one hundred eight million, seventy-three thousand, nine hundred ninety-seven".