685145579010 has 32 divisors (see below), whose sum is σ = 1650601687680. Its totient is φ = 182010787968.

The previous prime is 685145579003. The next prime is 685145579011. The reversal of 685145579010 is 10975541586.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (685145579011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43410715 + ... + 43426494.

It is an arithmetic number, because the mean of its divisors is an integer number (51581302740).

Almost surely, 2^685145579010 is an apocalyptic number.

685145579010 is an abundant number, since it is smaller than the sum of its proper divisors (965456108670).

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

685145579010 is a wasteful number, since it uses less digits than its factorization.

685145579010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86837482.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 685145579010 in words is "six hundred eighty-five billion, one hundred forty-five million, five hundred seventy-nine thousand, ten".