685578395703 has 8 divisors (see below), whose sum is σ = 935362772608. Its totient is φ = 446423141304.

The previous prime is 685578395701. The next prime is 685578395717. The reversal of 685578395703 is 307593875586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 685578395703 - 2¹ = 685578395701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685578395701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2657280475 + ... + 2657280732.

It is an arithmetic number, because the mean of its divisors is an integer number (116920346576).

Almost surely, 2^685578395703 is an apocalyptic number.

685578395703 is a deficient number, since it is larger than the sum of its proper divisors (249784376905).

685578395703 is a wasteful number, since it uses less digits than its factorization.

685578395703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314561253.

The product of its (nonzero) digits is 190512000, while the sum is 66.

The spelling of 685578395703 in words is "six hundred eighty-five billion, five hundred seventy-eight million, three hundred ninety-five thousand, seven hundred three".