783544340057 has 2 divisors, whose sum is σ = 783544340058. Its totient is φ = 783544340056.

The previous prime is 783544340009. The next prime is 783544340101. The reversal of 783544340057 is 750043445387.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 754681388176 + 28862951881 = 868724^2 + 169891^2 .

It is an emirp because it is prime and its reverse (750043445387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 783544340057 - 2¹⁸ = 783544077913 is a prime.

It is a super-2 number, since 2×783544340057² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 783544339987 and 783544340014.

It is not a weakly prime, because it can be changed into another prime (783544340357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391772170028 + 391772170029.

It is an arithmetic number, because the mean of its divisors is an integer number (391772170029).

Almost surely, 2^783544340057 is an apocalyptic number.

It is an amenable number.

783544340057 is a deficient number, since it is larger than the sum of its proper divisors (1).

783544340057 is an equidigital number, since it uses as much as digits as its factorization.

783544340057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5644800, while the sum is 50.

The spelling of 783544340057 in words is "seven hundred eighty-three billion, five hundred forty-four million, three hundred forty thousand, fifty-seven".