685924017423 has 8 divisors (see below), whose sum is σ = 914751907968. Its totient is φ = 457189402584.

The previous prime is 685924017419. The next prime is 685924017433. The reversal of 685924017423 is 324710429586.

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

It is not a de Polignac number, because 685924017423 - 2² = 685924017419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685924017433) 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, 23301765 + ... + 23331182.

It is an arithmetic number, because the mean of its divisors is an integer number (114343988496).

It is a 1-persistent number, because it is pandigital, but 2⋅685924017423 = 1371848034846 is not.

Almost surely, 2^685924017423 is an apocalyptic number.

685924017423 is a deficient number, since it is larger than the sum of its proper divisors (228827890545).

685924017423 is a wasteful number, since it uses less digits than its factorization.

685924017423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46637853.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 685924017423 in words is "six hundred eighty-five billion, nine hundred twenty-four million, seventeen thousand, four hundred twenty-three".