1098360765641 has 2 divisors, whose sum is σ = 1098360765642. Its totient is φ = 1098360765640.

The previous prime is 1098360765629. The next prime is 1098360765653. The reversal of 1098360765641 is 1465670638901.

It is a balanced prime because it is at equal distance from previous prime (1098360765629) and next prime (1098360765653).

It can be written as a sum of positive squares in only one way, i.e., 611987031616 + 486373734025 = 782296^2 + 697405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098360765641 - 2¹⁸ = 1098360503497 is a prime.

It is a super-2 number, since 2×1098360765641² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1098360765241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549180382820 + 549180382821.

It is an arithmetic number, because the mean of its divisors is an integer number (549180382821).

Almost surely, 2^{1098360765641} is an apocalyptic number.

It is an amenable number.

1098360765641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098360765641 is an equidigital number, since it uses as much as digits as its factorization.

1098360765641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 1098360765641 in words is "one trillion, ninety-eight billion, three hundred sixty million, seven hundred sixty-five thousand, six hundred forty-one".