1262060047561 has 2 divisors, whose sum is σ = 1262060047562. Its totient is φ = 1262060047560.

The previous prime is 1262060047543. The next prime is 1262060047649. The reversal of 1262060047561 is 1657400602621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789361171600 + 472698875961 = 888460^2 + 687531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262060047561 - 2¹⁹ = 1262059523273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1262060047961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631030023780 + 631030023781.

It is an arithmetic number, because the mean of its divisors is an integer number (631030023781).

Almost surely, 2^{1262060047561} is an apocalyptic number.

It is an amenable number.

1262060047561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262060047561 is an equidigital number, since it uses as much as digits as its factorization.

1262060047561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 1262060047561 in words is "one trillion, two hundred sixty-two billion, sixty million, forty-seven thousand, five hundred sixty-one".