683717212685 has 32 divisors (see below), whose sum is σ = 909880540800. Its totient is φ = 490015588608.

The previous prime is 683717212681. The next prime is 683717212753. The reversal of 683717212685 is 586212717386.

683717212685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 683717212685 - 2² = 683717212681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 683717212685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683717212681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340235 + ... + 1217864.

It is an arithmetic number, because the mean of its divisors is an integer number (28433766900).

Almost surely, 2^683717212685 is an apocalyptic number.

683717212685 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

683717212685 is a deficient number, since it is larger than the sum of its proper divisors (226163328115).

683717212685 is a wasteful number, since it uses less digits than its factorization.

683717212685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558317.

The product of its digits is 6773760, while the sum is 56.

The spelling of 683717212685 in words is "six hundred eighty-three billion, seven hundred seventeen million, two hundred twelve thousand, six hundred eighty-five".