208574311090 has 16 divisors (see below), whose sum is σ = 375784980120. Its totient is φ = 83351675520.

The previous prime is 208574311069. The next prime is 208574311109. The reversal of 208574311090 is 90113475802.

208574311090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 151930787089 + 56643524001 = 389783^2 + 237999^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9744891 + ... + 9766270.

Almost surely, 2^208574311090 is an apocalyptic number.

208574311090 is a deficient number, since it is larger than the sum of its proper divisors (167210669030).

208574311090 is a wasteful number, since it uses less digits than its factorization.

208574311090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19512237.

The product of its (nonzero) digits is 60480, while the sum is 40.

Adding to 208574311090 its reverse (90113475802), we get a palindrome (298687786892).

The spelling of 208574311090 in words is "two hundred eight billion, five hundred seventy-four million, three hundred eleven thousand, ninety".