1052781757597 has 2 divisors, whose sum is σ = 1052781757598. Its totient is φ = 1052781757596.

The previous prime is 1052781757523. The next prime is 1052781757603. The reversal of 1052781757597 is 7957571872501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 686095799481 + 366685958116 = 828309^2 + 605546^2 .

It is an emirp because it is prime and its reverse (7957571872501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052781757597 is a prime.

It is a super-2 number, since 2×1052781757597² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1052781757297) 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, 526390878798 + 526390878799.

It is an arithmetic number, because the mean of its divisors is an integer number (526390878799).

Almost surely, 2^{1052781757597} is an apocalyptic number.

It is an amenable number.

1052781757597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052781757597 is an equidigital number, since it uses as much as digits as its factorization.

1052781757597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43218000, while the sum is 64.

The spelling of 1052781757597 in words is "one trillion, fifty-two billion, seven hundred eighty-one million, seven hundred fifty-seven thousand, five hundred ninety-seven".