208379970878 has 8 divisors (see below), whose sum is σ = 313057586880. Its totient is φ = 104027441920.

The previous prime is 208379970871. The next prime is 208379970889. The reversal of 208379970878 is 878079973802.

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

It is a super-2 number, since 2×208379970878² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208379970871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81270158 + ... + 81272721.

It is an arithmetic number, because the mean of its divisors is an integer number (39132198360).

Almost surely, 2^208379970878 is an apocalyptic number.

208379970878 is a deficient number, since it is larger than the sum of its proper divisors (104677616002).

208379970878 is a wasteful number, since it uses less digits than its factorization.

208379970878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162543522.

The product of its (nonzero) digits is 85349376, while the sum is 68.

The spelling of 208379970878 in words is "two hundred eight billion, three hundred seventy-nine million, nine hundred seventy thousand, eight hundred seventy-eight".