685329497050 has 48 divisors (see below), whose sum is σ = 1397876673024. Its totient is φ = 247905920000.

The previous prime is 685329497029. The next prime is 685329497057. The reversal of 685329497050 is 50794923586.

It is not an unprimeable number, because it can be changed into a prime (685329497057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3156871 + ... + 3366970.

It is an arithmetic number, because the mean of its divisors is an integer number (29122430688).

Almost surely, 2^685329497050 is an apocalyptic number.

685329497050 is an abundant number, since it is smaller than the sum of its proper divisors (712547175974).

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

685329497050 is a wasteful number, since it uses less digits than its factorization.

685329497050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524055 (or 6524050 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 685329497050 in words is "six hundred eighty-five billion, three hundred twenty-nine million, four hundred ninety-seven thousand, fifty".