1860290012681 has 2 divisors, whose sum is σ = 1860290012682. Its totient is φ = 1860290012680.

The previous prime is 1860290012677. The next prime is 1860290012747. The reversal of 1860290012681 is 1862100920681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1855261926400 + 5028086281 = 1362080^2 + 70909^2 .

It is a cyclic number.

It is not a de Polignac number, because 1860290012681 - 2² = 1860290012677 is a prime.

It is a super-2 number, since 2×1860290012681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1860290012611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930145006340 + 930145006341.

It is an arithmetic number, because the mean of its divisors is an integer number (930145006341).

Almost surely, 2^{1860290012681} is an apocalyptic number.

It is an amenable number.

1860290012681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1860290012681 is an equidigital number, since it uses as much as digits as its factorization.

1860290012681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 1860290012681 in words is "one trillion, eight hundred sixty billion, two hundred ninety million, twelve thousand, six hundred eighty-one".