685002407000 has 64 divisors (see below), whose sum is σ = 1603152008640. Its totient is φ = 273958848000.

The previous prime is 685002406987. The next prime is 685002407003. The reversal of 685002407000 is 704200586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685002407003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6917840 + ... + 7016160.

It is an arithmetic number, because the mean of its divisors is an integer number (25049250135).

Almost surely, 2^685002407000 is an apocalyptic number.

It is an amenable number.

685002407000 is an abundant number, since it is smaller than the sum of its proper divisors (918149601640).

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

685002407000 is a wasteful number, since it uses less digits than its factorization.

685002407000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105309 (or 105295 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 685002407000 its reverse (704200586), we get a palindrome (685706607586).

The spelling of 685002407000 in words is "six hundred eighty-five billion, two million, four hundred seven thousand".