685006994522 has 32 divisors (see below), whose sum is σ = 1055534846400. Its totient is φ = 333278644608.

The previous prime is 685006994501. The next prime is 685006994557. The reversal of 685006994522 is 225499600586.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7143518 + ... + 7238774.

It is an arithmetic number, because the mean of its divisors is an integer number (32985463950).

Almost surely, 2^685006994522 is an apocalyptic number.

685006994522 is a deficient number, since it is larger than the sum of its proper divisors (370527851878).

685006994522 is a wasteful number, since it uses less digits than its factorization.

685006994522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95870.

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 685006994522 in words is "six hundred eighty-five billion, six million, nine hundred ninety-four thousand, five hundred twenty-two".