676685418389 has 4 divisors (see below), whose sum is σ = 676688088780. Its totient is φ = 676682748000.

The previous prime is 676685418349. The next prime is 676685418401. The reversal of 676685418389 is 983814586676.

676685418389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 467058795889 + 209626622500 = 683417^2 + 457850^2 .

It is a cyclic number.

It is not a de Polignac number, because 676685418389 - 2²⁸ = 676416982933 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 (676685418349) 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, 909944 + ... + 1476945.

It is an arithmetic number, because the mean of its divisors is an integer number (169172022195).

Almost surely, 2^676685418389 is an apocalyptic number.

It is an amenable number.

676685418389 is a deficient number, since it is larger than the sum of its proper divisors (2670391).

676685418389 is a wasteful number, since it uses less digits than its factorization.

676685418389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670390.

The product of its digits is 418037760, while the sum is 71.

The spelling of 676685418389 in words is "six hundred seventy-six billion, six hundred eighty-five million, four hundred eighteen thousand, three hundred eighty-nine".