682127787701 has 4 divisors (see below), whose sum is σ = 694998123372. Its totient is φ = 669257452032.

The previous prime is 682127787683. The next prime is 682127787749. The reversal of 682127787701 is 107787721286.

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 309997287076 + 372130500625 = 556774^2 + 610025^2 .

It is a cyclic number.

It is not a de Polignac number, because 682127787701 - 2¹⁰ = 682127786677 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 (682127777701) 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, 6435167756 + ... + 6435167861.

It is an arithmetic number, because the mean of its divisors is an integer number (173749530843).

Almost surely, 2^682127787701 is an apocalyptic number.

It is an amenable number.

682127787701 is a deficient number, since it is larger than the sum of its proper divisors (12870335671).

682127787701 is a wasteful number, since it uses less digits than its factorization.

682127787701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12870335670.

The product of its (nonzero) digits is 3687936, while the sum is 56.

The spelling of 682127787701 in words is "six hundred eighty-two billion, one hundred twenty-seven million, seven hundred eighty-seven thousand, seven hundred one".