683242418557 has 2 divisors, whose sum is σ = 683242418558. Its totient is φ = 683242418556.

The previous prime is 683242418533. The next prime is 683242418609. The reversal of 683242418557 is 755814242386.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342202770361 + 341039648196 = 584981^2 + 583986^2 .

It is a cyclic number.

It is not a de Polignac number, because 683242418557 - 2³¹ = 681094934909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 683242418498 and 683242418507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683242218557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341621209278 + 341621209279.

It is an arithmetic number, because the mean of its divisors is an integer number (341621209279).

Almost surely, 2^683242418557 is an apocalyptic number.

It is an amenable number.

683242418557 is a deficient number, since it is larger than the sum of its proper divisors (1).

683242418557 is an equidigital number, since it uses as much as digits as its factorization.

683242418557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12902400, while the sum is 55.

The spelling of 683242418557 in words is "six hundred eighty-three billion, two hundred forty-two million, four hundred eighteen thousand, five hundred fifty-seven".