685522225586 has 16 divisors (see below), whose sum is σ = 1160445147840. Its totient is φ = 300856148880.

The previous prime is 685522225573. The next prime is 685522225601.

685522225586 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537242486 + ... + 537243761.

It is an arithmetic number, because the mean of its divisors is an integer number (72527821740).

Almost surely, 2^685522225586 is an apocalyptic number.

685522225586 is a deficient number, since it is larger than the sum of its proper divisors (474922922254).

685522225586 is a wasteful number, since it uses less digits than its factorization.

685522225586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074486289.

The product of its digits is 23040000, while the sum is 56.

The spelling of 685522225586 in words is "six hundred eighty-five billion, five hundred twenty-two million, two hundred twenty-five thousand, five hundred eighty-six".