684023583869 has 4 divisors (see below), whose sum is σ = 706088860800. Its totient is φ = 661958306940.

The previous prime is 684023583853. The next prime is 684023583889. The reversal of 684023583869 is 968385320486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 684023583869 - 2⁴ = 684023583853 is a prime.

It is a super-2 number, since 2×684023583869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684023583809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11032638419 + ... + 11032638480.

It is an arithmetic number, because the mean of its divisors is an integer number (176522215200).

Almost surely, 2^684023583869 is an apocalyptic number.

It is an amenable number.

684023583869 is a deficient number, since it is larger than the sum of its proper divisors (22065276931).

684023583869 is a wasteful number, since it uses less digits than its factorization.

684023583869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22065276930.

The product of its (nonzero) digits is 59719680, while the sum is 62.

The spelling of 684023583869 in words is "six hundred eighty-four billion, twenty-three million, five hundred eighty-three thousand, eight hundred sixty-nine".