1075285361681 has 2 divisors, whose sum is σ = 1075285361682. Its totient is φ = 1075285361680.

The previous prime is 1075285361677. The next prime is 1075285361687. The reversal of 1075285361681 is 1861635825701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040316361681 + 34969000000 = 1019959^2 + 187000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075285361681 - 2² = 1075285361677 is a prime.

It is a super-2 number, since 2×1075285361681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1075285361687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537642680840 + 537642680841.

It is an arithmetic number, because the mean of its divisors is an integer number (537642680841).

Almost surely, 2^{1075285361681} is an apocalyptic number.

It is an amenable number.

1075285361681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075285361681 is an equidigital number, since it uses as much as digits as its factorization.

1075285361681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 1075285361681 in words is "one trillion, seventy-five billion, two hundred eighty-five million, three hundred sixty-one thousand, six hundred eighty-one".