685392799470 has 16 divisors (see below), whose sum is σ = 1644942718800. Its totient is φ = 182771413184.

The previous prime is 685392799463. The next prime is 685392799477. The reversal of 685392799470 is 74997293586.

It is an interprime number because it is at equal distance from previous prime (685392799463) and next prime (685392799477).

It is a super-3 number, since 3×685392799470³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 685392799395 and 685392799404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685392799477) 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, 11423213295 + ... + 11423213354.

It is an arithmetic number, because the mean of its divisors is an integer number (102808919925).

Almost surely, 2^685392799470 is an apocalyptic number.

685392799470 is an abundant number, since it is smaller than the sum of its proper divisors (959549919330).

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

685392799470 is a wasteful number, since it uses less digits than its factorization.

685392799470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22846426659.

The product of its (nonzero) digits is 205752960, while the sum is 69.

The spelling of 685392799470 in words is "six hundred eighty-five billion, three hundred ninety-two million, seven hundred ninety-nine thousand, four hundred seventy".