675519809557 has 2 divisors, whose sum is σ = 675519809558. Its totient is φ = 675519809556.

The previous prime is 675519809521. The next prime is 675519809561. The reversal of 675519809557 is 755908915576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502724958961 + 172794850596 = 709031^2 + 415686^2 .

It is a cyclic number.

It is not a de Polignac number, because 675519809557 - 2²³ = 675511420949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 675519809492 and 675519809501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675519809567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337759904778 + 337759904779.

It is an arithmetic number, because the mean of its divisors is an integer number (337759904779).

Almost surely, 2^675519809557 is an apocalyptic number.

It is an amenable number.

675519809557 is a deficient number, since it is larger than the sum of its proper divisors (1).

675519809557 is an equidigital number, since it uses as much as digits as its factorization.

675519809557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 119070000, while the sum is 67.

The spelling of 675519809557 in words is "six hundred seventy-five billion, five hundred nineteen million, eight hundred nine thousand, five hundred fifty-seven".