208869052915 has 8 divisors (see below), whose sum is σ = 259285721040. Its totient is φ = 161333337312.

The previous prime is 208869052913. The next prime is 208869052957. The reversal of 208869052915 is 519250968802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 208869052915 - 2¹ = 208869052913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208869052913) by changing a digit.

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, 720237969 + ... + 720238258.

It is an arithmetic number, because the mean of its divisors is an integer number (32410715130).

Almost surely, 2^208869052915 is an apocalyptic number.

208869052915 is a deficient number, since it is larger than the sum of its proper divisors (50416668125).

208869052915 is a wasteful number, since it uses less digits than its factorization.

208869052915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440476261.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 208869052915 in words is "two hundred eight billion, eight hundred sixty-nine million, fifty-two thousand, nine hundred fifteen".