675444444557 has 2 divisors, whose sum is σ = 675444444558. Its totient is φ = 675444444556.

The previous prime is 675444444427. The next prime is 675444444607. The reversal of 675444444557 is 755444444576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 667471026121 + 7973418436 = 816989^2 + 89294^2 .

It is a cyclic number.

It is not a de Polignac number, because 675444444557 - 2¹⁰ = 675444443533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 675444444496 and 675444444505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675444446557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337722222278 + 337722222279.

It is an arithmetic number, because the mean of its divisors is an integer number (337722222279).

Almost surely, 2^675444444557 is an apocalyptic number.

It is an amenable number.

675444444557 is a deficient number, since it is larger than the sum of its proper divisors (1).

675444444557 is an equidigital number, since it uses as much as digits as its factorization.

675444444557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528000, while the sum is 59.

The spelling of 675444444557 in words is "six hundred seventy-five billion, four hundred forty-four million, four hundred forty-four thousand, five hundred fifty-seven".