208587040770 has 16 divisors (see below), whose sum is σ = 500608897920. Its totient is φ = 55623210864.

The previous prime is 208587040751. The next prime is 208587040771. The reversal of 208587040770 is 77040785802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (208587040771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3476450650 + ... + 3476450709.

It is an arithmetic number, because the mean of its divisors is an integer number (31288056120).

Almost surely, 2^208587040770 is an apocalyptic number.

208587040770 is an abundant number, since it is smaller than the sum of its proper divisors (292021857150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208587040770 is a wasteful number, since it uses less digits than its factorization.

208587040770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952901369.

The product of its (nonzero) digits is 878080, while the sum is 48.

The spelling of 208587040770 in words is "two hundred eight billion, five hundred eighty-seven million, forty thousand, seven hundred seventy".